Simple way to get the actual length of a string (including Chinese characters) by JS

Method 1:

 var jmz = {};jmz.GetLength = function(str) { ///<summary>Get the actual length of the string, Chinese 2, English 1</summary> ///<param name="str">To get the string of length</param> var realLength = 0, len = str.length, charCode = -1; for (var i = 0; i < len; i++) { charCode = str.charCodeAt(i); if (charCode >= 0 && charCode <= 128) realLength += 1; else realLength += 2; } return realLength;};alert(jmz.GetLength('test test ceshiceshi));

Method 2 (a more concise method):

 var l = str.length;var blend = 0;for(i=0; i<l; i++) {if ((str.charCodeAt(i) & 0xff00) != 0) {blen ++;}blen ++;}

Method 3 (a more concise method):

 var jmz = {};jmz.GetLength = function(str) { return str.replace(/[/u0391-/uFFE5]/g,"aa").length; //First replace Chinese with two bytes of English, calculate the length}; alert(jmz.GetLength('test test ceshiceshi'));

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