摘要:js trim空白
常用js trim 空白
String.prototype.trim=function(){
return this.replace(/^\s*|\s*$/g,'');
}
var CurForm = document.forms[0];
var tmpMsg = "";
if(CurForm.Subject.value.trim()=="") { tmpMsg = tmpMsg + "[主旨]\n"; }
if(tmpMsg !=""){
alert("請填寫以下欄位：\n"+tmpMsg);}