DimNS/isEmpty.js

Javascript empty value checker

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>