JavaScript go to string Space Ultimate version (support UTF8) _javascript tips

In fact, the problem is: If your JS itself is Unicode encoding, then use the regular expression \s can remove all the blanks, but if you JS is utf-8 encoding, then you can not process the encoding of 160 of the space.

I'll take a regular expression to remove the space encoded in 32, and then use the recursive method to remove the Unicode spaces on either side of the string.

Copy Code code as follows:

/** go to character two-space start
* @author Oswei
* @version v1.0
* @date 2009/11/14 22:51
/
String.prototype.trim = function () {
var r = this.replace (/(^\s*) | ( \s*$)/g, "");
R = Lremoveblank (r);
R = Rremoveblank (r);
Return R;
}

function Lremoveblank (s) {
if (s.length = = 1 && s.charcodeat (0) = = 160)
return ";
if (s.charcodeat (0) = = 160) {
S = s.substr (1, s.length-1);
return Removeblank (s);
}
Else {
return s;
}
}

function Rremoveblank (s) {
if (s.length = = 1 && s.charcodeat (0) = = 160)
Retu RN "";
if (s.charcodeat (s.length-1) = = 160) {
S = s.substr (0, s.length-1);
return Rremoveblank (s);
}
Else {
return s;
}
}

//--the end of a character with a space ending

//e.g.
var a = "  a  ";
Alert ("B" + A.trim () + "B");