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three trim function(javascript)

摘要: three trim function(javascript)

function LTrim(s)
{
for(var i=0;iif(s.charAt(i)!= )
return s.substring(i,s.length);
return "";
}

function RTrim(s)
{
for(var i=s.length-1;i>=0;i--)
if(s.charAt(i)!= )
return s.substring(0,i+1);
return "";
}

function Trim(s)
{
return RTrim(LTrim(s));
}