This article explains how to build a canvas‑based calendar widget using Konva, covering the design of date cells, task‑range rendering, drag‑and‑drop interaction, event handling, and the public API, and provides the full source code for reference.
This article explains how to create a reusable Vue calendar component by designing its data structure, generating a 7×6 date matrix, implementing navigation props and events, and applying customizable styles, providing complete code examples for template, script, and scoped CSS.
This article walks through creating a customizable work‑calendar component in React, covering lunar‑type date APIs, essential Date methods, data structures, algorithms for generating month and year weeks, and implementing a draggable box‑selection feature for batch date type editing.
This article details how the author recreated Xiaomi's calendar using React functional components, TypeScript typings, TailwindCSS styling, and the lunar‑typescript library, covering the tech stack, core date calculations, view rendering, touch‑based scrolling, and view mode switching with complete source code examples.
This tutorial explains how to build a reusable PHP Calendar class that handles year, month, navigation and renders an HTML table, and shows a simple front‑end script that loads the class and displays the calendar, complete with CSS styling and example output.
This article lists ten frequent mistakes when using Java's date and time APIs—such as misusing Calendar fields, wrong format patterns, thread‑unsafe SimpleDateFormat, and daylight‑saving quirks—and provides clear corrected examples and best‑practice solutions.
This article explains the design choices, data processing, virtual‑list optimization, scroll handling, and extensible slot/prop architecture used to build a high‑performance vertical‑switching calendar component in the NutUI front‑end library.
This article explains the design and implementation of NutUI's vertical‑scroll Calendar component, covering data initialization, virtual‑list rendering, scroll and boundary handling, and extensible slots, props, and events to achieve both smooth interaction and optimal performance.
This article provides a detailed tutorial on Python's time‑related classes and functions, covering Unix timestamps, conversion tools, and the practical use of the calendar, time, and datetime modules with examples of formatting, timezone conversion, and common time‑conversion tricks for everyday programming tasks.
This tutorial explains six Python techniques—including datetime.weekday(), datetime.isoweekday(), strftime(), calendar, pendulum, and pandas—to retrieve the weekday of any given date such as 2022‑02‑22, with code examples and usage tips for data analysis.
The article explains how using the week‑based year pattern (YYYY) instead of the calendar year pattern (yyyy) in Java's SimpleDateFormat can cause dates like 2019‑12‑31 to be displayed as 2020‑12‑31, illustrating the issue with code examples and a clear explanation of the underlying rules.
The article explains a subtle Java date‑formatting bug where using the week‑based year pattern (YYYY) can incorrectly display the next calendar year for dates at year‑end, demonstrates the issue with sample code, and clarifies why yyyy should be used for ordinary year representation.
This article presents practical Python tricks—including set operations, calendar calculations, enumerate usage with custom start indices, clean if‑else handling via enums, the enum module itself, and iPython basics—providing concise examples and explanations to help developers write more efficient and readable code.
This article presents a collection of practical Python tips covering set operations, calendar calculations, the enumerate function with a start index, clean conditional handling using dictionaries and enums, and an introduction to iPython for interactive development, all illustrated with concise code examples.
This tutorial walks through creating a fully functional PHP calendar class that generates an HTML table, handles navigation between months and years, and integrates customizable CSS styling, providing complete source code and step‑by‑step explanations for developers.
The article explains PHP's cal_days_in_month function, detailing its purpose, parameters (calendar, month, year), return value, and provides a complete example showing how to retrieve and display the number of days in a specific month of a given year.
This article demonstrates how to create recurring iOS calendar reminders for Monday‑to‑Friday workdays, filter out Chinese statutory holidays using an external holiday‑cn JSON source, and handle make‑up workdays, providing complete Swift code and step‑by‑step explanations.
The cal_to_jd() function in PHP calculates the Julian Day count from a given date, supporting Gregorian, Julian, Jewish, and French calendars, and returns the corresponding Julian Day number based on the provided calendar, month, day, and year parameters.
The cal_info() PHP function returns detailed information about a specified calendar—including month names, abbreviations, maximum days, and identifiers—or all supported calendars when no argument is given, with usage examples and output illustrated.
This article provides a comprehensive guide to Python's time-related modules—including timestamps, the calendar module, time, and datetime—explaining core concepts, useful functions, and real‑world examples, plus handy conversion techniques for everyday programming tasks.
This article showcases practical Python tricks—including set operations for deduplication, permission handling with set differences, calendar month calculations, enumerate with custom start indices, clean if‑else handling via enums, and iPython usage—providing concise code examples that boost everyday development productivity.
This article presents a straightforward Java solution that converts UTC timestamps to Beijing time by applying an 8‑hour offset and provides utility methods to retrieve the current week number, month, day, and year using the Calendar class.
This article explains how to use Python's time and datetime modules to calculate workdays between two dates, determine week counts, and retrieve dates offset by a given number of days or months, providing reusable utility scripts with clear code examples.
Explore three lesser‑known Linux command‑line utilities—termsaver for ASCII screensavers, pv for visualizing data transfer rates, and calendar for customizable text‑based calendars—learning installation methods, usage examples, and tips to enhance your terminal workflow.
This article introduces three lesser‑known but powerful Linux command‑line tools—termsaver for ASCII screensavers, pv for monitoring data pipelines, and calendar for flexible date displays—explaining their installation, usage, and practical examples.
This article explains the legacy java.util.Date class, its limited useful constructors and methods, the more flexible java.util.Calendar API, how to format and parse dates with DateFormat and SimpleDateFormat, and best practices for storing timestamps in databases using long values.
