indexOf throwing error in IE8, I am using knockoutjs

This question already has an answer here:

Why doesn't indexOf work on an array IE8? 7 answers

---

Try this

    return checkedPriceVals.toString()
.indexOf(priceObjects[i].fields.displayable.value())>=0;

it will work.

---

使用$ .inArray代替indexOf，或者你可以定义方法：

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;
}
}

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