57 lines
1.5 KiB
JavaScript
57 lines
1.5 KiB
JavaScript
define([], function () {
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'use strict';
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return {
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/**
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* Convert a string to ArrayBuffer
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* @param {string} str String to convert
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* @returns {ArrayBuffer} Result
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*/
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str2ab: function (str) {
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var i, buf = new ArrayBuffer(str.length), bufView = new Uint8Array(buf);
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for (i = 0; i < str.length; i++) {
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bufView[i] = str.charCodeAt(i);
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}
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return buf;
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},
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/**
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* Convert an array to ArrayBuffer
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* @param array
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* @returns {ArrayBuffer} Result
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*/
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a2ab: function (array) {
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return new Uint8Array(array).buffer;
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},
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/**
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* Convert ArrayBuffer to string
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* @param {ArrayBuffer} buffer Buffer to convert
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* @returns {string}
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*/
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ab2hexstr: function (buffer) {
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var i, str = '', ua = new Uint8Array(buffer);
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for (i = 0; i < ua.length; i++) {
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str += this.b2hexstr(ua[i]);
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}
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return str;
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},
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/**
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* Convert byte to hexstr.
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* @param {number} byte Byte to convert
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*/
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b2hexstr: function (byte) {
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return ('00' + byte.toString(16)).substr(-2);
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},
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/**
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* @param {ArrayBuffer} buffer
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* @returns {string}
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*/
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ab2str: function (buffer) {
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return String.fromCharCode.apply(null, new Uint8Array(buffer));
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}
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};
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});
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