我一直試圖弄清楚很長一段時間,並會感謝任何幫助。JavaScript數組元素沒有通過函數設置?
的代碼如下所示,這裏可以看到http://incoming.comule.com/isnan.html
<script>
var price = new Array();
function add(price) {
//alert("function add: is price not a number? = "+isNaN(price));
price[0] = price;
}
function addman() {
price[0] = 0.87;
}
function status() {
alert(price[0]);
}
function num() {
alert("function Number: is price not a number? = "+isNaN(Number(price[0])));
}
function pInt() {
alert("function parseInt: is price not a number? = "+isNaN(parseInt(price[0])));
}
function pFloat() {
alert("function parseFloat: is price not a number? = "+isNaN(parseFloat(price[0])));
}
</script>
<a href="javascript:add('0.45');">Add price 0.45</a> then click ... <a href="javascript:status();">status</a> ,
<a href="javascript:num();">number</a> , <a href="javascript:pInt();">parseInt</a> , <a href="javascript:pFloat();">parseFloat</a>
<p>
<a href="javascript:addman();">set manually</a>
當我點擊添加價格,那麼狀態,它顯示爲不確定的,但是當我點擊手動設置,那麼狀態,該狀態將顯示值。唯一的區別是它是如何設置的,有誰知道我可以通過函數變量添加它嗎?
謝謝你,斑點:) – piniyini 2012-08-14 10:28:18