var stringWithNumbers = 'alo1337';
var stringWithoutNumbers = 'alo';
var test1 = /\d/.test(stringWithNumbers);
var test2 = /\d/.test(stringWithoutNumbers);
console.log(test1,test2);
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You can use [html][/html], [css][/css], [php][/php] and more to embed the code. Urls are automatically hyperlinked. Line breaks and paragraphs are automatically generated.