Function isAsciiString

deps/undici/undici.js:6346–6353

(chars)

    var decoder = new TextDecoder();
    var decoderIgnoreBOM = new TextDecoder("utf-8", { ignoreBOM: true });
    function isAsciiString(chars) {
      for (let i = 0; i < chars.length; ++i) {
        if ((chars.charCodeAt(i) & ~127) !== 0) {
          return false;
        }
      }
      return true;
    }
    __name(isAsciiString, "isAsciiString");
    function validateBoundary(boundary) {
      const length = boundary.length;