Interface BufferConstructor

types/buffer.d.ts:79–315

        valueOf(): T;
      };
  interface BufferConstructor {
    /**
     * Returns the byte length of a string when encoded using `encoding`.
     * This is not the same as [`String.prototype.length`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/length), which does not account
     * for the encoding that is used to convert the string into bytes.
     *
     * ```js
     * import { Buffer } from 'buffer';
     *
     * const str = '\u00bd + \u00bc = \u00be';
     *
     * console.log(`${str}: ${str.length} characters, ` +
     *             `${Buffer.byteLength(str, 'utf8')} bytes`);
     * // Prints: ½ + ¼ = ¾: 9 characters, 12 bytes
     * ```
     *
     * When `string` is a
     * `Buffer`/[`DataView`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView)/[`TypedArray`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/-
     * Reference/Global_Objects/TypedArray)/[`ArrayBuffer`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer)/[`SharedArrayBuffer`](https://develop-
     * er.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/SharedArrayBuffer), the byte length as reported by `.byteLength`is returned.
     * @param string A value to calculate the length of.
     * @param [encoding='utf8'] If `string` is a string, this is its encoding.
     * @return The number of bytes contained within `string`.
     */
    byteLength(
      string:
        | string
        | Buffer
        | QuickJS.ArrayBufferView
        | ArrayBuffer
        | SharedArrayBuffer,
      encoding?: BufferEncoding
    ): number;
    /**
     * Returns a new `Buffer` which is the result of concatenating all the `Buffer` instances in the `list` together.
     *
     * If the list has no items, or if the `totalLength` is 0, then a new zero-length `Buffer` is returned.
     *
     * If `totalLength` is not provided, it is calculated from the `Buffer` instances
     * in `list` by adding their lengths.
     *
     * If `totalLength` is provided, it is coerced to an unsigned integer. If the
     * combined length of the `Buffer`s in `list` exceeds `totalLength`, the result is
     * truncated to `totalLength`.
     *
     * ```js
     * import { Buffer } from 'buffer';
     *
     * // Create a single `Buffer` from a list of three `Buffer` instances.
     *
     * const buf1 = Buffer.alloc(10);
     * const buf2 = Buffer.alloc(14);
     * const buf3 = Buffer.alloc(18);
     * const totalLength = buf1.length + buf2.length + buf3.length;
     *
     * console.log(totalLength);
     * // Prints: 42
     *