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

JSFiddle - React, Tailwind, and code Playground

JavaScript

var regex1 = "/^[^a]+$/";
var regex2 = "/^[^b]+$/";
alert(/^[^a]+$/.test(regex2)); // true: regex1 matches regex2
alert(/^[^b]+$/.test(regex1)); // true: regex2 matches regex1
alert(/^[^a]+$/.test(regex1)); // false: regex1 doesn't match regex1
alert(/^[^b]+$/.test(regex2)); // false: regex2 doesn't match regex2

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JSFiddle - React, Tailwind, and code Playground

JavaScript

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