why in IE7 javascript array.indexOf is not working? Here is one sample
function loaderFn()
{
var arr=["0","1","2"];
var b = arr.indexOf("1")
alert("Index of 1 is "+b);
}
In IE7 in line 4 (arr.indexOf("1"))
Object doesn't support property or method 'indexOf' error throws
Why this hapening only in IE7? What is the way to find index no of a value in array using javascript for IE7?
Add this in your document.ready method:
if(!Array.prototype.indexOf) {
Array.prototype.indexOf = function(obj, start) {
for (var i = (start || 0), j = this.length; i < j; i++) {
if (this[i] === obj) { return i; }
}
return -1;
}
}
This is needed because IE does not include this method up to IE8. The above function checks if it exists, if not it extends the Array prototype with it.
window.onload = function () { Javascript code goes here }