Nodejs String to Byte Convert toBytes()

Method Source Code

/**//from  w w w .  j  a  v a 2 s . com
 * Returns an array of *bytes* that represent this string.
 */
String.prototype.toBytes = String.prototype.toBytes || function () {
    var BYTE = 8,
        BYTES = 2,
        MAX = Math.pow(2,BYTE)-1,
        c = '',
        buf,
        len = this.length,
        bytes = [];

    for (var i = 0; i < len; i++) {
        c = this.charCodeAt(i);
        buf = [];
        do { buf.push(c & MAX); c >>= BYTE; } while (c);
        bytes = bytes.concat(buf.reverse());
    }

    return bytes;
};

Related

1. getBytes()

   function addAll(arr1, arr2) {
     var i=0;
     for(i=0;i<arr2.length;i++) {
       arr1.push(arr2[i]);
   String.prototype.getBytes = function() {
       return encodeURIComponent(this).replace(/%../g, 'x').length;
   };
   ...
   

2. getBytes()

   var crypto = require('crypto')
   String.prototype.getBytes = function () {
     var bytes = [];
     for (var i = 0; i < this.length; ++i) {
       bytes.push(this.charCodeAt(i));
     return bytes;
   };
   module.exports = function convert(secretKey) {
   ...
   

3. toByteString()

   String.prototype.toByteString = function()
      var ar = this.split(' '),
        res = "";
      for(var i = 0; i < ar.length; ++i)
       res += String.fromCharCode( parseInt(ar[i], 16) );
      return res;
   ...
   

4. toBytes()

   String.prototype.toBytes = function () {
     var bytes = [];
     for (var i = 0; i < this.length; ++i) {
         bytes.push(this.charCodeAt(i));
     return bytes;
   };
   

5. toBytes()

   String.prototype.toBytes = function () {
     var i, ii, bytes = [];
     for (i = 0, ii = this.length; i < ii; i += 1) {
       bytes.push(this.charCodeAt(i));
     return bytes;
   };