我将以下代码放在外部.js文件中,但我试图调用该函数,它返回undefined。 Plz帮助
function getTransactions(accno) {
var from, to, selected=new Array();
var transactionPool=new Array();
transactionPool[0]=new createTrans("1/20/2015", "PPS Payment", "dr", 1300.5);
transactionPool[1]=new createTrans("2/27/2015", "Online", "cr", 300.5);
transactionPool[2]=new createTrans("1/11/2016", "ATM", "dr", 9300.0);
transactionPool[3]=new createTrans("2/20/2016", "Counter", "dr", 300.5);
transactionPool[4]=new createTrans("3/15/2016", "Online", "dr", 2200);
transactionPool[5]=new createTrans("4/23/2016", "PPS Payment", "dr", 4300.99);
transactionPool[6]=new createTrans("5/2/2016", "Counter", "cr", 7300.5);
transactionPool[7]=new createTrans("6/5/2016", "Online", "dr", 500.5);
transactionPool[8]=new createTrans("7/20/2016", "ATM", "cr", 800.3);
transactionPool[9]=new createTrans("11/5/2016", "PPS Payment", "cr", 300.5);
from=Math.floor(Math.random()*10);
to=Math.floor(Math.random()*10+1);
for (i=0; i<to; i++) {
selected[i]=transactionPool[from];
from=(from+1)%9;
}
return selected;
}
<script>window.onload = function () {
document.getElementById("account").
innerHTML = localStorage.accDetails;
var accDetail=getTransactions();
document.getElementById("test").innerHTML = transactionPool[0];
}</script>
我在脚本中写这个来调用函数但不起作用。我的代码有什么问题?感谢。
答案 0 :(得分:0)
嗯,首先,在你的脚本标签中没有名为transactionPool的变量,因为对返回数组的引用名为accDetail而不是transactionPool,而transactionPool(正确)不是全局变量。
答案 1 :(得分:-1)
一点建议:不要使用&#34; new Array()&#34;但要使用&#34; []&#34;声明数组!
var list = [
function(){ // 0
return 'cat';
},
function(){ // 1
return true
},
function(){ // 2
return false;
},
function(){ // 3
return 'food';
}
];
// RUN!!
alert( list[2]() );
&#13;