es-toolkit
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A state-of-the-art, high-performance JavaScript utility library with a small bundle size and strong type annotations.
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TypeScript
/**
* Checks if the current environment is Node.js.
*
* This function checks for the existence of the `process.versions.node` property,
* which only exists in Node.js environments.
*
* @returns {boolean} `true` if the current environment is Node.js, otherwise `false`.
*
* @example
* if (isNode()) {
* console.log('This is running in Node.js');
* const fs = import('node:fs');
* }
*/
declare function isNode(): boolean;
export { isNode };