.inArray传递一个变量来检查数组JQuery

I have a function where I am iterating over each .marker, creating a variable that contains its classes.

我有一个函数,我在每个.marker上迭代,创建一个包含其类的变量。

I also have an array named checkBoxClasses.

我还有一个名为checkBoxClasses的数组。

What I'm having a problem with is checking the classes within the variable markerClasses against the array checkBoxClasses. I want to break down the variable markerClasses and pass each individual class through the array.

我遇到的问题是检查变量markerClasses中的类与数组checkBoxClasses。我想分解变量markerClasses并通过数组传递每个单独的类。

Here's the code so far:

这是迄今为止的代码:

$('.marker').each(function () {

      var markerClasses = $(this).attr('class').split(' ');

            if ($.inArray(markerClasses , checkBoxClasses) > -1) {

                //do something

            };
});

1 个解决方案

#1

inArray checks for a single value in an array. Since the value of the array reference markerClasses isn't in checkBoxClasses, it will always return -1.

inArray检查数组中的单个值。由于数组引用markerClasses的值不在checkBoxClasses中,因此它将始终返回-1。

It's unclear what you want to do. If you want to know if any of the markerClasses entries is in checkBoxClasses, you'll need to loop them and check them individually, breaking on the first match. If you want to check if they're all in checkBoxClasses, it's similar but you break on the first non-match.

目前还不清楚你想做什么。如果你想知道任何markerClasses条目是否在checkBoxClasses中,你需要循环它们并单独检查它们,打破第一个匹配。如果你想检查它们是否都在checkBoxClasses中,它是相似的,但是你在第一次不匹配时就会中断。

E.g., to see if any of the element's classes is in checkBoxClasses:

例如,查看任何元素的类是否在checkBoxClasses中:

var markerClasses = $(this).attr('class').split(' ');
var found = false;
$.each(markerClasses, function(index, value) {
    if ($.inArray(value, checkBoxClasses) !== -1) {
        found = true;
        return false;
    }
}
if (found) {
    // At least one of the element's classes was in `checkBoxClasses`
}

To see if all of the element's classes are in checkBoxClasses:

要查看所有元素的类是否都在checkBoxClasses中:

var markerClasses = $(this).attr('class').split(' ');
var allFound = true;
$.each(markerClasses, function(index, value) {
    if ($.inArray(value, checkBoxClasses) === -1) {
        allFound = false;
        return false;
    }
}
if (allFound) {
    // *All* of the element's classes was in `checkBoxClasses`
    // (Including the case where the element didn't have any.)
}

#1