How to convert JavaScript full-width characters to half-width characters

The Helper House (www.bkjia.com) Tutorial used to convert the full-width characters into a half-width place in the work and found this conversion function.

Reference content is as follows: // Str: string to be converted Function DBC2SBC (str) { Var result = ""; For (var I = 0; I <str. length; I ++) { Code = str. charCodeAt (I); // obtain the unicode code of the Current Character If (code> = 65281 & code <= 65373) // In this unicode encoding range, all English letters have various characters { Var d = str. charCodeAt (I)-65248; Result + = String. fromCharCode (d); // converts the unicode code of the full-width character to the unicode code of the corresponding half-width character } Else if (code = 12288) // Space { Var d = str. charCodeAt (I)-12288 + 32; Result + = String. fromCharCode (d ); } Else { Result + = str. charAt (I ); } } Return result; }