@worker-tools/html-rewriter/src/_dnt.polyfills.ts

WASM-based implementation of Cloudflare's HTML Rewriter for use in Deno, browsers, etc.

declare global {
  // https://github.com/microsoft/TypeScript/blob/main/lib/lib.es2021.string.d.ts
  interface String {
    /**
     * Replace all instances of a substring in a string, using a regular expression or search string.
     * @param searchValue A string to search for.
     * @param replaceValue A string containing the text to replace for every successful match of searchValue in this string.
     */
    replaceAll(searchValue: string | RegExp, replaceValue: string): string;

    /**
     * Replace all instances of a substring in a string, using a regular expression or search string.
     * @param searchValue A string to search for.
     * @param replacer A function that returns the replacement text.
     */
    replaceAll(
      searchValue: string | RegExp,
      replacer: (substring: string, ...args: any[]) => string,
    ): string;
  }
}

/**
 * String.prototype.replaceAll() polyfill
 * https://gomakethings.com/how-to-replace-a-section-of-a-string-with-another-one-with-vanilla-js/
 * @author Chris Ferdinandi
 * @license MIT
 */
if (!String.prototype.replaceAll) {
  String.prototype.replaceAll = function (str: any, newStr: any) {
    // If a regex pattern
    if (
      Object.prototype.toString.call(str).toLowerCase() === "[object regexp]"
    ) {
      return this.replace(str, newStr);
    }

    // If a string
    return this.replace(new RegExp(str, "g"), newStr);
  };
}

export {};