isEmpty.js

isEmpty(value)

Check for empty value (null, undefined, number, string, object or array).

notEmpty(value)

Check for not empty value (null, undefined, number, string, object or array).

Install

npm i dimns-is-empty-js

Usage

<script type="text/javascript" src="dist/isEmpty.min.js">
<script type="text/javascript">
    // true
    console.log(isEmpty(null));
    console.log(isEmpty(undefined));
    console.log(isEmpty(NaN));
    console.log(isEmpty(''));
    console.log(isEmpty('    '));
    console.log(isEmpty({}));
    console.log(isEmpty([]));

    // false
    console.log(isEmpty('null'));
    console.log(isEmpty('undefined'));
    console.log(isEmpty(0));
    console.log(isEmpty(123));
    console.log(isEmpty('  spaces '));
    console.log(isEmpty({'1': '111', '2': '222'}));
    console.log(isEmpty(['111', '222']));
    console.log(isEmpty(function() {}));
    console.log(isEmpty(true));
    console.log(isEmpty(false));
    
    // true
    console.log(notEmpty('null'));
    console.log(notEmpty('undefined'));
    console.log(notEmpty(0));
    console.log(notEmpty(123));
    console.log(notEmpty('  spaces '));
    console.log(notEmpty({'1': '111', '2': '222'}));
    console.log(notEmpty(['111', '222']));
    console.log(notEmpty(function() {}));
    console.log(notEmpty(true));
    console.log(notEmpty(false));

    // false
    console.log(notEmpty(null));
    console.log(notEmpty(undefined));
    console.log(notEmpty(NaN));
    console.log(notEmpty(''));
    console.log(notEmpty('    '));
    console.log(notEmpty({}));
    console.log(notEmpty([]));
</script>