regexkit/dist/escapers.js

A useful regex toolkit for validation, extraction, and escaping in JavaScript/TypeScript.

export const escapeRegex = (str) => str.replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
export const unescapeRegex = (str) => str.replace(/\\([.*+?^${}()|[\]\\])/g, "$1");
export const escapeHTML = (str) => str
    .replace(/&/g, "&")
    .replace(/</g, "&lt;")
    .replace(/>/g, "&gt;")
    .replace(/"/g, "&quot;")
    .replace(/'/g, "&#039;");
export const unescapeHTML = (str) => str
    .replace(/&amp;/g, "&")
    .replace(/&lt;/g, "<")
    .replace(/&gt;/g, ">")
    .replace(/&quot;/g, '"')
    .replace(/&#039;/g, "'");
export const escapeJSON = (str) => str
    .replace(/\\/g, "\\\\")
    .replace(/"/g, '\\"')
    .replace(/\n/g, "\\n")
    .replace(/\r/g, "\\r")
    .replace(/\t/g, "\\t")
    .replace(/\b/g, "\\b")
    .replace(/\f/g, "\\f");
export const unescapeJSON = (str) => str
    .replace(/\\\\/g, "\\")
    .replace(/\\"/g, '"')
    .replace(/\\n/g, "\n")
    .replace(/\\r/g, "\r")
    .replace(/\\t/g, "\t")
    .replace(/\\b/g, "\b")
    .replace(/\\f/g, "\f");