@devutil/devutil NPM

DevUtil.js

Useful JavaScript development utilities (functions).

<script src="devutil.js"></script>

<script type="application/javascript">
  console.log(DevUtil.isTrue(true));
</script>

JavaScript function	Description
DevUtil.isDefined()	`true` if variable is defined, `false` otherwise
DevUtil.isUndefined()	`true` if variable is undefined, `false` otherwise
DevUtil.isTrue()	`true` if variable's value equals to true, `false` otherwise
DevUtil.isFalse()	`true` if variable's value equals to false, `false` otherwise

npm install --save-dev jest

npm run test

3 years ago