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152 articles

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Jan 6, 2021 · Backend Development

Comprehensive Guide to Using Postman for API Testing and Automation

This article provides a detailed walkthrough of Postman, covering its core and advanced features, installation steps, interface navigation, how to send various types of requests, response analysis, collection management, batch execution, logging, assertions, variables, pre‑request scripts, request chaining, and techniques for extracting values from complex JSON responses.

API testingPostmanVariables

0 likes · 22 min read

Comprehensive Guide to Using Postman for API Testing and Automation

Liangxu Linux

Dec 23, 2020 · Operations

Master Ansible Playbooks: From Basics to Advanced Variable Management

This guide explains what an Ansible playbook is, its YAML syntax, how to write tasks, use inventory limits, manage variables through extra‑vars, vars files, host/group vars, custom facts, control flow with when/changed_when/failed_when, delegate tasks, prompt users, apply tags, and handle errors with blocks and rescue/always sections.

DevOpsHandlersPlaybook

0 likes · 37 min read

Master Ansible Playbooks: From Basics to Advanced Variable Management

Laravel Tech Community

Dec 16, 2020 · Backend Development

PHP extract() Function: Importing Variables from an Array into the Symbol Table

This article explains how PHP's extract() function imports variables from an associative array into the current symbol table, details its parameters, conflict‑resolution flags, return values, and provides a complete example with code and expected output.

ArrayBackendExtract

0 likes · 3 min read

PHP extract() Function: Importing Variables from an Array into the Symbol Table

Laravel Tech Community

Dec 11, 2020 · Backend Development

Using PHP compact() to Create an Array of Variable Names and Their Values

This article explains how PHP's compact() function builds an associative array by extracting variable names from the current scope, details its parameters and return value, and provides a complete example with code and output illustrating its usage.

ArrayBackendPHP

0 likes · 2 min read

Using PHP compact() to Create an Array of Variable Names and Their Values

php Courses

Nov 20, 2020 · Backend Development

PHP Tutorial: Using Variables to Store and Display Student Information

This tutorial explains how to define PHP variables for a student's name, birth date, subject and student number, enforce specific formatting rules, and embed the variables in a 4‑row × 2‑column HTML table to display the information on a web page.

BackendHTMLPHP

0 likes · 5 min read

PHP Tutorial: Using Variables to Store and Display Student Information

Programmer DD

Nov 13, 2020 · Fundamentals

Why Are They Called “Static”? Unraveling Java’s Static Variables and Methods

This article demystifies Java’s static concept by contrasting static and dynamic members, explaining class‑object relationships, showing concrete examples, and outlining when to declare static variables or methods, their characteristics, cautions, and advantages.

Object-OrientedVariablesfundamentals

0 likes · 7 min read

Why Are They Called “Static”? Unraveling Java’s Static Variables and Methods

Python Crawling & Data Mining

Oct 15, 2020 · Backend Development

Master Go Variables: Types, Declarations, and Best Practices

This article introduces Go language variable fundamentals, explaining why variables are needed, common types, various declaration methods—including explicit typing, type inference, short declaration, global and anonymous variables—and constant usage, complemented by code examples and practical tips for effective Go programming.

ConstantsGoType Inference

0 likes · 7 min read

Master Go Variables: Types, Declarations, and Best Practices

Python Crawling & Data Mining

Oct 7, 2020 · Fundamentals

Unlock Python’s sys Module: 12 Essential Variables Explained

This article introduces Python’s sys module, a core standard‑library component closely tied to the interpreter, and walks through twelve of its most useful attributes—such as argv, path, modules, executable, and version—providing concise explanations, code snippets, and visual illustrations to help readers understand and apply each variable effectively.

PythonStandard LibraryVariables

0 likes · 5 min read

Unlock Python’s sys Module: 12 Essential Variables Explained

Aikesheng Open Source Community

Jun 19, 2020 · Databases

Understanding MySQL Variable Persistence and the Use of SET PERSIST

This article explains how MySQL variables are stored in memory and configuration files, the challenges of modifying them before MySQL 8, and how the new SET PERSIST and SET PERSIST_ONLY statements simplify persistent variable management with proper permissions and examples.

Database ConfigurationPersistenceSET PERSIST

0 likes · 7 min read

Understanding MySQL Variable Persistence and the Use of SET PERSIST

ITPUB

May 26, 2020 · Backend Development

Master Go Basics: Packages, Types, Variables, Constants, and Functions

This tutorial introduces Go's core concepts—including package structure, built‑in types, variable and constant declarations, and function definitions—explaining syntax nuances, import styles, type creation, and initialization patterns to help beginners quickly become productive in Go.

GoPackagesVariables

0 likes · 9 min read

Master Go Basics: Packages, Types, Variables, Constants, and Functions

MaGe Linux Operations

May 12, 2020 · Operations

Master Ansible Playbooks: Syntax, Variables, Handlers & Advanced Tips

This guide explains what an Ansible playbook is, its YAML syntax, how to run tasks on multiple hosts, limit execution with --limit, use inventory files, define variables via extra‑vars, vars, vars_files, host_vars and group_vars, work with facts, register results, apply when conditions, delegate tasks, pause execution, prompt for input, tag tasks, and structure plays with blocks, rescue and always sections.

AnsibleDevOpsHandlers

0 likes · 35 min read

Master Ansible Playbooks: Syntax, Variables, Handlers & Advanced Tips

Python Programming Learning Circle

May 6, 2020 · Fundamentals

Python Variable Usage, Types, and Naming Conventions

This tutorial explains how to read user input into a variable, print it, handle type conversion for arithmetic, check variable types, convert between types, and follow proper naming rules for Python variables.

Variablesinputnaming conventions

0 likes · 5 min read

Python Variable Usage, Types, and Naming Conventions

Efficient Ops

Mar 9, 2020 · Fundamentals

Master Python Basics: Essential Syntax, Variables, and Operators Explained

This comprehensive guide walks you through Python fundamentals, covering its philosophy, installation, basic syntax, comments, operators, data types, variable naming, control structures, loops, functions, and module usage, providing clear examples and practical tips for quick reference.

PythonVariablesbasics

0 likes · 39 min read

Master Python Basics: Essential Syntax, Variables, and Operators Explained

360 Quality & Efficiency

Feb 13, 2020 · Backend Development

Reliable Bash Shell Scripting Practices

This article presents a comprehensive set of best‑practice guidelines for writing reliable Bash shell scripts, covering shebang selection, quoting variables, function encapsulation, readonly constants, variable scope, error handling, debugging, path management, argument parsing with shift, signal trapping, and helpful tips to improve script robustness and maintainability.

BashError HandlingShell scripting

0 likes · 9 min read

MaGe Linux Operations

Feb 2, 2020 · Fundamentals

Unlock Bash Mastery: Variables, Loops, Functions, and More Explained

This article provides a comprehensive guide to Bash programming, covering variable types and naming rules, assignment and quoting, environment and positional variables, arithmetic and logical operations, conditional statements, loops, functions, arrays, string manipulation, signal handling, and essential command‑line utilities for Linux system scripting.

BashLinuxLoops

0 likes · 24 min read

Unlock Bash Mastery: Variables, Loops, Functions, and More Explained

MaGe Linux Operations

Dec 10, 2019 · Operations

Master JMeter Distributed Load Testing: Setup, Assertions, and Performance Analysis

This guide walks operations engineers through understanding server bottlenecks, setting up JMeter's distributed load testing environment on Windows and Linux, configuring assertions and variables, analyzing performance results, and monitoring both concurrency and stability tests to ensure reliable scalability.

JMeterOperationsPerformance Testing

0 likes · 13 min read

Master JMeter Distributed Load Testing: Setup, Assertions, and Performance Analysis

Jike Tech Team

Sep 24, 2019 · Mobile Development

Master Kotlin for Android: A Quick Start Guide for Mobile Developers

This guide walks Android engineers through adding Kotlin support to new or existing projects, explains Kotlin's variable declarations, null‑safety features, type inference, val/var usage, visibility modifiers, class inheritance, open/final semantics, and safe casting, providing concise code examples and practical tips.

AndroidKotlinMobile Development

0 likes · 25 min read

Master Kotlin for Android: A Quick Start Guide for Mobile Developers

Python Programming Learning Circle

Sep 18, 2019 · Fundamentals

Master Python Basics: Variables, Data Types, and Core Syntax

This article provides a comprehensive introduction to Python fundamentals, covering its key features, variable handling, core data types such as numbers, strings, lists, tuples, and dictionaries, as well as essential concepts like comments, indentation, operators, control structures, time handling, file I/O, exception handling, and function definitions, complete with practical code examples.

Variablesbasicscontrol-flow

0 likes · 13 min read

Master Python Basics: Variables, Data Types, and Core Syntax

MaGe Linux Operations

Aug 9, 2019 · Fundamentals

Master Python Basics: Variables, Loops, Data Structures, and OOP Explained

This tutorial introduces Python by defining the language, explaining why it’s popular, and walking through core fundamentals such as variables, conditional statements, loops, lists, dictionaries, classes, encapsulation, getters/setters, and inheritance with clear code examples.

Data StructuresLoopsOOP

0 likes · 18 min read

Master Python Basics: Variables, Loops, Data Structures, and OOP Explained

Practical DevOps Architecture

Apr 12, 2019 · Fundamentals

Introduction to Linux Shell: Concepts, Script Types, Editing Standards, Execution Methods, and Variables

This article explains what a Linux/Unix shell is, lists common shell languages, outlines script editing conventions, describes various ways to execute shell scripts, and introduces environment, local, and special variables with practical command‑line examples.

Variables

0 likes · 13 min read

MaGe Linux Operations

Apr 8, 2019 · Fundamentals

Master Python Basics: Variables, Control Flow, Data Structures, and OOP Explained

This comprehensive guide walks you through Python fundamentals—from defining variables and using conditional statements to mastering loops, lists, dictionaries, and object‑oriented programming concepts—providing clear examples and code snippets to help beginners build a solid coding foundation.

LoopsObject-OrientedVariables

0 likes · 18 min read

Master Python Basics: Variables, Control Flow, Data Structures, and OOP Explained

Qunar Tech Salon

Mar 26, 2019 · Frontend Development

Guide to Using CSS Next (postcss‑cssnext) with Webpack for Modern Front‑End Styling

This article introduces CSS Next, a PostCSS plugin that brings future CSS syntax to current browsers, explains how to integrate it into a Webpack workflow, and demonstrates key features such as custom properties, @apply, calc(), custom media queries, custom selectors, and nesting with code examples compared to Sass and Less.

CSSPreprocessorVariables

0 likes · 8 min read

Guide to Using CSS Next (postcss‑cssnext) with Webpack for Modern Front‑End Styling

Big Data Technology & Architecture

Mar 9, 2019 · Fundamentals

Understanding Variables, Constants, and Type Declarations in Scala

This article explains the concepts of variables and constants in Scala, describes how to declare them using 'var' and 'val', outlines type declaration syntax, demonstrates type inference, and shows examples of multiple variable declarations and tuple assignments.

ConstantsScalaVariables

0 likes · 4 min read

Understanding Variables, Constants, and Type Declarations in Scala

21CTO

Nov 17, 2018 · Operations

Master Shell Scripting: From Basics to Advanced Automation

This guide explains what Shell scripts are, their practical uses and limitations, the underlying interpreter mechanism, and provides step‑by‑step examples covering variables, arithmetic and relational operators, strings, arrays, input/output, conditionals, loops, functions, redirection, and automation scripts such as a Git commit helper.

BashLoopsShell

0 likes · 10 min read

Master Shell Scripting: From Basics to Advanced Automation

MaGe Linux Operations

Oct 14, 2018 · Fundamentals

Master Python Basics: Variables, Control Flow, Data Structures & OOP

This comprehensive guide walks you through Python fundamentals, covering variable assignment, data types, conditional statements, loops, list and dictionary operations, as well as class definitions, object instantiation, encapsulation, and inheritance, all illustrated with clear code examples.

LoopsObject-OrientedPython

0 likes · 18 min read

Master Python Basics: Variables, Control Flow, Data Structures & OOP

MaGe Linux Operations

Oct 9, 2018 · Fundamentals

Master Python Variables and Data Types: From Assignment to Conversion

This article explains how Python stores variables in memory, covers variable assignment, multiple assignments, the five standard data types (numbers, strings, lists, tuples, dictionaries), and shows how to convert between types using built‑in functions, illustrated with code examples and output images.

Data TypesVariablesassignment

0 likes · 9 min read

Master Python Variables and Data Types: From Assignment to Conversion

Java Captain

Aug 29, 2018 · Fundamentals

Understanding Java Variables: Types, Naming Rules, and Type Conversions

This article explains Java variables, covering their definition, data types (primitive and reference), naming conventions, value assignment, automatic widening conversions, explicit casting, and string‑numeric conversions, illustrated with clear code examples.

Data TypesVariablesjava

0 likes · 5 min read

Understanding Java Variables: Types, Naming Rules, and Type Conversions

DevOps Cloud Academy

Jun 12, 2018 · Fundamentals

Shell Custom Variables: Definition, Format, Types, and Usage

This article explains what shell variables are, their naming rules and assignment syntax, the different categories of variables, and demonstrates how to define and output custom variables in Linux shells with practical command‑line examples.

LinuxScriptingShell

0 likes · 3 min read

Shell Custom Variables: Definition, Format, Types, and Usage

ITPUB

May 25, 2018 · Fundamentals

Understanding Code: From Conditions to Functions with Real‑World Analogies

This tutorial explains programming fundamentals using everyday analogies, covering how code serves as a precise language for computers, the role of conditionals, loops, variables, functions, modules, and an introduction to classes, all illustrated with Python examples that model buying fruit under different scenarios.

ConditionalsLoopsModules

0 likes · 16 min read

Understanding Code: From Conditions to Functions with Real‑World Analogies

AI Cyberspace

May 9, 2018 · Fundamentals

Master C Constants and Variables: Types, Definitions, and Common Pitfalls

This article explains C/C++ constants—including integer, floating‑point, character, string, and symbolic forms—their syntax, examples, and common errors, and then covers variables, their definition, assignment, initialization, and related best‑practice notes.

C ProgrammingConstantsVariables

0 likes · 7 min read

Master C Constants and Variables: Types, Definitions, and Common Pitfalls

MaGe Linux Operations

Apr 26, 2018 · Fundamentals

Decoding Python’s Underscore Naming Conventions: From Single to Double Dunders

This article explains the meaning and conventions of single and double leading, trailing, and combined underscores in Python identifiers, demonstrates how name mangling works, and shows practical examples of how these patterns affect variable access, imports, inheritance, and REPL usage.

PEP 8PythonVariables

0 likes · 11 min read

Decoding Python’s Underscore Naming Conventions: From Single to Double Dunders

Java Captain

Apr 10, 2018 · Fundamentals

Java Basics: Hello World, Variables, Arrays, Expressions, Control Structures, and Object‑Oriented Concepts

This tutorial introduces Java fundamentals for beginners, covering the Hello World program, class and method syntax, variable declaration, arrays, expressions, control flow statements, and basic object‑oriented concepts with clear explanations and runnable code examples.

ArraysControl FlowObject-Oriented

0 likes · 9 min read

Java Basics: Hello World, Variables, Arrays, Expressions, Control Structures, and Object‑Oriented Concepts

MaGe Linux Operations

Apr 10, 2018 · Fundamentals

Master Shell Scripting: From Variables to Advanced Sed Editing

This comprehensive guide walks you through the essentials of Bash shell scripting, covering variable definitions, printing, arithmetic, control structures, loops, arrays, functions, file I/O, sed stream editing, modular scripts, and interactive menus, all illustrated with clear code examples.

BashLoopsShell scripting

0 likes · 24 min read

Master Shell Scripting: From Variables to Advanced Sed Editing

MaGe Linux Operations

Mar 24, 2018 · Fundamentals

Master Python Basics: Variables, Loops, Data Structures, and OOP

This tutorial introduces Python's core philosophy and syntax, covering variables, conditional statements, loops, lists, dictionaries, and object‑oriented concepts such as classes, encapsulation, and inheritance, providing ready‑to‑run code examples for each topic.

LoopsOOPVariables

0 likes · 17 min read

Master Python Basics: Variables, Loops, Data Structures, and OOP

MaGe Linux Operations

Mar 21, 2018 · Fundamentals

Master Python Basics: From Code to Functions and Modules Explained

This tutorial introduces the fundamentals of programming with Python, explaining what code is, how to use conditionals, loops, variables, functions, parameters, modules, and classes, and provides clear examples that illustrate each concept for beginners.

ConditionalsLoopsModules

0 likes · 15 min read

Master Python Basics: From Code to Functions and Modules Explained

360 Quality & Efficiency

Feb 7, 2018 · Fundamentals

Introduction to Shell Scripting: Variables, Strings, Conditionals, Loops, and Execution

This article provides a beginner-friendly guide to shell scripting, covering script creation, variable definitions, read‑only and unset variables, string handling with quotes, echo usage, conditional if‑else statements, for and while loops, and two methods for executing scripts, all illustrated with clear code examples.

LinuxLoopsShell

0 likes · 5 min read

Introduction to Shell Scripting: Variables, Strings, Conditionals, Loops, and Execution

21CTO

Jan 13, 2018 · Fundamentals

Master Python Basics: Variables, Control Flow, Loops, Lists & Dictionaries

This tutorial introduces Python fundamentals, covering variables, conditional statements, while and for loops, list operations, and dictionary usage, with clear explanations and code examples to help beginners quickly start programming in Python.

Control FlowDictionariesLists

0 likes · 10 min read

Master Python Basics: Variables, Control Flow, Loops, Lists & Dictionaries

AI Large-Model Wave and Transformation Guide

Nov 8, 2017 · Fundamentals

Mastering Variables: From Numbers to Strings in Simple Code Examples

This tutorial explains how variables act as named placeholders for data, demonstrates assigning numeric values, performing arithmetic, and concatenating strings through clear Python code snippets, and shows the expected output for each example to help beginners grasp variable usage.

Code ExamplesVariablesbeginner tutorial

0 likes · 4 min read

Mastering Variables: From Numbers to Strings in Simple Code Examples

21CTO

Oct 13, 2017 · Fundamentals

Master Python Basics: Variables, Control Flow, Loops, Data Structures & OOP

This comprehensive tutorial walks you through Python fundamentals—from defining variables, booleans, strings, and numbers to using conditional statements, while and for loops, manipulating lists and dictionaries, and building classes with objects, encapsulation, and inheritance—providing clear code examples for each concept.

Control FlowData StructuresLoops

0 likes · 19 min read

Master Python Basics: Variables, Control Flow, Loops, Data Structures & OOP

ITPUB

Aug 23, 2017 · Operations

Master Bash: Essential Variables, Operators, and Conditional Statements

This guide introduces Bash scripting fundamentals, covering predefined variables, declaration operators, and practical examples of single‑, double‑, and multi‑branch if statements for tasks such as checking user privileges, disk usage, and service status on Linux systems.

BashIf StatementsLinux

0 likes · 5 min read

Master Bash: Essential Variables, Operators, and Conditional Statements

MaGe Linux Operations

Jul 12, 2017 · Fundamentals

10 Common Python Mistakes Every Developer Should Avoid

This article reviews ten frequent Python programming errors—including mutable default arguments, class variable misuse, incorrect exception handling, variable scope pitfalls, list mutation during iteration, closure late binding, circular imports, naming conflicts, Python 2/3 differences, and improper use of del—providing clear explanations and practical solutions to help developers write more reliable code.

ExceptionsPythonVariables

0 likes · 14 min read

10 Common Python Mistakes Every Developer Should Avoid

MaGe Linux Operations

Jul 8, 2017 · Operations

Master Shell Scripting: From Basics to Advanced Automation

This article introduces shell scripting fundamentals, explores practical use cases, explains how the shell works, demonstrates variables, operators, control structures, functions, redirection, and provides example scripts for automating tasks on Windows, Unix, and Linux systems.

BashLoopsShell scripting

0 likes · 6 min read

Hujiang Technology

Jun 16, 2017 · Mobile Development

Kotlin Basics: Variables, Control Flow, Functions, and Extensions

This article introduces Kotlin fundamentals for developers, covering variable declarations, control flow statements such as if, when, and loops, smart type inference, null-safety, function definitions with default parameters, varargs, extension functions, and provides practical code examples to help newcomers quickly adopt Kotlin.

AndroidKotlinMobile Development

0 likes · 9 min read

Kotlin Basics: Variables, Control Flow, Functions, and Extensions

MaGe Linux Operations

Apr 15, 2017 · Fundamentals

Master Bash Scripting: Essential Basics, Quirks, and Safety Tips

This article walks through Bash scripting fundamentals—including variable assignment, quoting, loops, conditionals, functions, return codes, and background jobs—while highlighting common pitfalls and safety practices such as always quoting variables and using the shellcheck linter.

BashIf StatementsSafety

0 likes · 10 min read

Master Bash Scripting: Essential Basics, Quirks, and Safety Tips

MaGe Linux Operations

Apr 10, 2017 · Fundamentals

Master Python Variables: Types, Assignment, and Common Pitfalls

This article provides a comprehensive guide to Python variables, covering their characteristics, how to assign and reassign values, multiple assignment techniques, the five built‑in data types, numeric and string operations, list, tuple, dictionary usage, and type conversion functions.

Data TypesVariablesassignment

0 likes · 9 min read

Master Python Variables: Types, Assignment, and Common Pitfalls

MaGe Linux Operations

Mar 7, 2017 · Fundamentals

Master Shell Variables: From Basics to Advanced Tricks

This article introduces the fundamentals of shell variables, covering local and environment variables, naming rules, assignment syntax, common reference methods, numeric operations, arrays (including multidimensional techniques using eval), and special parameters, providing practical examples and essential commands for effective Bash scripting.

ArraysBashEnvironment

0 likes · 10 min read

Master Shell Variables: From Basics to Advanced Tricks

MaGe Linux Operations

Feb 20, 2017 · Fundamentals

Master Python Variables and Data Types in Just 5 Minutes

This article explains how Python stores variables in memory, demonstrates single and multiple assignments, outlines the five built‑in data types (numbers, strings, lists, tuples, dictionaries), and provides conversion functions with clear code examples for beginners.

Data TypesPythonVariables

0 likes · 10 min read

Master Python Variables and Data Types in Just 5 Minutes

ZhiKe AI

Feb 14, 2017 · Fundamentals

Mastering Linux Shell: Basics, Scripts, Variables, and Control Structures

This article introduces the Linux shell as an interface and scripting language, explains how to execute scripts, manage system and user variables, use special variables, operators, conditional statements, loops, case constructs, and define functions, providing concrete syntax examples for each feature.

BashControl structuresLinux

0 likes · 9 min read

Mastering Linux Shell: Basics, Scripts, Variables, and Control Structures

CSS Magic

Jan 10, 2017 · Frontend Development

Why Use a CSS Preprocessor? Key Benefits and Core Features Explained

The article explains how CSS preprocessors like Stylus give developers file splitting, modular architecture, selector nesting, variables, calculations, functions, mixins, and build‑time optimizations, showing concrete code examples that illustrate each feature and why they make complex web styling more maintainable and scalable.

CSSMixinModular CSS

0 likes · 11 min read

Why Use a CSS Preprocessor? Key Benefits and Core Features Explained

Model Perspective

Jun 2, 2016 · Fundamentals

Why Classifying Teaching Environments Is Essential for Modeling New Teachers

Classifying teaching environments helps simplify complex educational contexts, identify key variables, and build models—whether statistical, numerical, or mechanistic—to understand how factors like classroom dynamics, teacher‑student relationships, and colleague interactions influence a novice teacher’s development.

ModelingVariablesclassification

0 likes · 3 min read

Why Classifying Teaching Environments Is Essential for Modeling New Teachers

MaGe Linux Operations

Apr 24, 2016 · Fundamentals

13 Essential Shell Questions Every Linux Beginner Should Know

This article compiles thirteen fundamental Linux shell questions covering the origin of the term "shell", the relationship between PS1 and carriage return, echo command usage, differences between single and double quotes, variable assignment, export behavior, and practical quoting techniques, providing clear explanations and examples for each.

Environment VariablesVariablesquoting

0 likes · 25 min read

13 Essential Shell Questions Every Linux Beginner Should Know

Aotu Lab

Apr 15, 2016 · Frontend Development

Master Clean JavaScript: Coding Style, Variables, Error Handling, and Design Patterns

This article provides a comprehensive guide to writing maintainable JavaScript, covering coding conventions, variable best practices, error handling techniques, object creation methods, prototype and module patterns, and practical examples to help developers build clean, modular, and loosely‑coupled code.

Design PatternsError HandlingJavaScript

0 likes · 16 min read

Master Clean JavaScript: Coding Style, Variables, Error Handling, and Design Patterns