[英]Javascript - Function Parameter As Variable
我已經搜索了一些答案,所以這就是我想做的-如果可能的話
function foo(variable){
如果我調用該函數,該如何將該參數作為變量傳遞呢?
function foo(9){
var stuff = 9;
//then pass variable to rest of script
這是完整的代碼:
function ajaxgetter(variable) {
var stuff = variable;
var mygetrequest = new ajaxRequest();
mygetrequest.onreadystatechange = function() {
if (mygetrequest.readyState == 4){
if (mygetrequest.status == 200 || window.location.href.indexOf("http") == -1){
document.getElementById("result").innerHTML = mygetrequest.responseText;
} else {
alert("An error has occured making the request");
}
}
}
var namevalue = encodeURIComponent(document.getElementById("name9"+stuff).value);
var agevalue = encodeURIComponent(document.getElementById("age9"+stuff).value);
var utvalue = encodeURIComponent(document.getElementById("ut9"+stuff).value);
document.getElementById("result").innerHTML = "<center><b>Loading...</b></center><br><center><img src='images/ajax-loader1.gif' /></center>";
mygetrequest.open("GET", "newdealerfinder.php?location="+namevalue+"&distance="+agevalue+"&ut="+utvalue1"&r="+ Math.random(), true)mygetrequest.send(null);
}
Onclick事件(PHP):
$javacounter = 1;
if($miles1 > 2) {
echo "<form action='' method='get' />
<input type='hidden' value='$city->lat,$city->lng' id='name9$javacounter' name='name9$javacounter' />
<input type='hidden' value='$currentunixtime' id='ut9$javacounter' name='ut9$javacounter' />
<input type='hidden' value='$distance' id='age9$javacounter' name='age9$javacounter' />
<input type='button' value='Coming Soon' onClick='ajaxgetter($javacounter)' />
</form>";
$javacounter++;
}
腳本位置: 此處
如果這是您的功能定義
function foo(variable){
var stuff = variable;
alert(stuff);
return stuff;
}
然后調用它並傳遞一個像這樣的值
var x = foo(9); //will alert 9
// use x..
// then pass variable to rest of script
不知道什么是“其余腳本”。 但是,如果您希望在函數外部訪問它,則需要對Javascript變量范圍和使用全局變量(而不是傳遞參數)進行一些研究。
您還可以從函數中返回變量,以便在整個腳本中也使用它。 我更新了代碼,表明...
我認為您正在嘗試從函數調用中獲取結果,並在腳本的其余部分中使用它?
var foo = function (variable) {
// do some stuff with variable
return variable;
}
var result = foo(9);
// do whatever with result in rest of script
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