Understanding esModuleInterop: CommonJS vs ES Module in TypeScript

The article explains how toggling TypeScript's esModuleInterop flag changes import behavior between CommonJS and ES Module syntax, causing runtime errors like “TPS is not a constructor,” and offers fixes—either revert the flag and use namespace imports or enable it and use default imports.

CommonJSESModuleNode.js

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Understanding esModuleInterop: CommonJS vs ES Module in TypeScript

Node Underground

May 23, 2022 · Frontend Development

Why allowSyntheticDefaultImports Alone Won’t Import React – Use esModuleInterop

This article explains how the TypeScript compiler options allowSyntheticDefaultImports and esModuleInterop affect importing React, showing the differences in emitted JavaScript and why the latter is needed for default imports to work correctly.

ReactTypeScriptallowSyntheticDefaultImports

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Why allowSyntheticDefaultImports Alone Won’t Import React – Use esModuleInterop