Javascript .indexOf无法处理int数组 [英] Javascript .indexOf not working on an int array

问题描述

代码：

function showlayer(name){
    var size = js_array.length
    var index = js_array.indexOf(name);
    var plusOne = js_array[index+1];
    document.write("" + name + "<br />" + js_array + "<br />" + index + "<br />" +
                   plusOne + "<br />" )
    ...
}

输出：

301
300,299,301,290,303,304,302,310,291,306,308,305,307,292,294,295,309
-1
300

name的所有可能值都在数组中，但由于某种原因，indexOf（）永远不会找到它们。怎么了？

All possible values of name are in the array, but for some reason indexOf() never finds them. Whats up?

推荐答案

试试这个：

...
var index = js_array.indexOf(parseInt(name, 10)); // so that it does not try to compare strings...
...

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