javascript 常见功能汇总

$(document).on('keyup','#no',function(){  var val = $.trim($(this).val());  if(val == null || val == '')    return;    $(this).val(val.replace(/[^0-9a-z]+/ig,''));  // 只能输入整数数字和字母});

value=value.replace(/[^/w/.//]/ig,'')value=value.replace(/[^/d|chun]/g,'')value=value.replace(/[^/w/.//]/ig,'')

function validate_email(myThis){  var val = $.trim($(myThis).val());  if(val == null || val == ""){    $("#email_error").text("email不能为空");    $(myThis).focus();    return;  }      if(val != null && val != ""){    if(!/^[a-zA-Z0-9_-]+@[a-zA-Z0-9_-]+(/.[a-zA-Z0-9_-]+)+$/g.test(val)){      $("#email_error").text("email格式错误");      $(myThis).focus();      return;    }  }  $("#email_error").text("");}

$(function(){  var a = 'testAbc，。、,./电饭锅123def';   b = a.replace(/[^0-9]+/ig,"");  alert(b);  b = a.replace(/[^a-z]+/ig,"");  alert(b);});

  var isFs = $(this).attr("datas");  $.cookie("isFs",isFs,{ expires: 7 });