Edit fiddle - JSFiddle - React, Tailwind, and code Playground

JSFiddle - React, Tailwind, and code Playground

JavaScript

function isNullOrWhitespace( input ) {
    
    if (input == null) return true;
    
    return input.replace(/\s/gi, '').length < 1;
}


/*alert (
    'test: ' + isNullOrWhitespace ( 'test' ) + '\n' +
    'null: ' + isNullOrWhitespace ( null ) + '\n' +
    '  12  : ' + isNullOrWhitespace ( '  12  ' ) + '\n' +
    '  : ' + isNullOrWhitespace ( '  ' ) + '\n'
);*/

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JSFiddle - React, Tailwind, and code Playground

JavaScript

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Use pre-released features

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