?? common.js
字號:
//???????
function validate(text){
var pattern = /^[1-9][0-9]*$/;
if(text.value.match(pattern)){
return true;
}else{
return false;
}
}
//???????????
function trim(inputString) {
if (typeof inputString != "string") { return inputString; }
var retValue = inputString;
var ch = retValue.substring(0, 1);
while (ch == " ") {
retValue = retValue.substring(1, retValue.length);
ch = retValue.substring(0, 1);
}
ch = retValue.substring(retValue.length-1, retValue.length);
while (ch == " ") {
retValue = retValue.substring(0, retValue.length-1);
ch = retValue.substring(retValue.length-1, retValue.length);
}
return retValue;
}
//????????
function getLength(s)
{
var sLength = 0;
for (i = 0; i < s.length; i++)
{
var c = s.charAt(i);
if (c.charCodeAt(0) < 256)
sLength += 1;
else
sLength += 2
}
return sLength;
}
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