JS判断表单是否填写的问题

JavaScript010

JS判断表单是否填写的问题,第1张

var field_value = $("[name=field_value[i]]").val()//你这里面的i是个字符

这样 var field_value = $("[name=field_value["+i+"]]").val()

var flag=true//定义标志位

 

for(){

 if(!input_pf[i].value){

flag=false

 break//直接跳出，

}

 

}

if(!flag){

 alert('aaa')

}

(function(document){var tableEl = document.getElementById("tableId"),trs = tableEl.getElementsByTagName("tr"),fTds = trs[0].getElementsByTagName("td"),index = 0,isAllZero = true for (var i = fTds.lengthi--){if (fTds[i].innerText === "scshl"){index = i break }} for (var i = 1, j = trs.lengthi <ji++){var tdEl = trs[i].getElementsByTagName("td")[index] if (+tdEl.innerText !== 0){isAllZero = false break }} if (isAllZero){alert("全部为零") } })(document)