@maddimathon/build-utilities
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Opinionated utilities for easy build systems in npm projects.
58 lines (57 loc) • 1.39 kB
JavaScript
/**
* @since 0.1.0-alpha.1
*
* @packageDocumentation
*/
/*!
* @maddimathon/build-utilities@0.3.0-alpha.4
* @license MIT
*/
/**
* Checks whether an object is empty (by checking for keys and constructor).
*
* Non-object types are evaluated in other ways depending on type.
*
* @since 0.1.0-alpha.1
*
* @internal
*
* @UPGRADE - replace with version from utility-typescript when it updates
*/
export function isObjectEmpty(obj) {
// returns if non-object
switch (typeof obj) {
case 'object':
// returns - checks length if array for
if (Array.isArray(obj)) {
return !obj.length;
}
break;
// always false
case 'boolean':
case 'bigint':
case 'function':
case 'number':
case 'symbol':
return false;
// always true
case 'undefined':
return true;
// have to check
case 'string':
return !obj.length;
// fallback checks for falsey-ness
default:
return !obj;
}
// returns true
if (obj === null) {
return true;
}
return (
(Object.keys(obj).length === 0
|| Object.values(obj).every((_val) => typeof _val === 'undefined'))
&& obj.constructor.name === 'Object'
);
}
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