This time I will show you how to use js to merge arraysGenerate key:value array, use js to merge arrays to generate key:value arrayWhat are the precautions, the following is the actual combat Let’s take a look at the case.
Core Code
// var activeSubjectsName = ["语文", "数学", "英语", "思想品德", "科学"]; // var activeSubjectsNum = [46, 2, 2, 28, 29]; // var activeSubjectsArr = []; for (var i = 0; i <p style="text-align: left;">The principle is to combine two arrays into one array, which is the same as the json comparison relationship. Friends who need it can refer to it. Note that the two arrays can be matched in order. . </p><p> I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website! </p><p>Recommended reading: </p><p><a href="http://www.php.cn/js-tutorial-399246.html" target="_blank">jQuery implementation of fuzzy query practical case analysis</a><br></p><p><a href="http://www.php.cn/js-tutorial-399247.html" target="_blank">How to deal with async/await wasteful performance issues</a><br></p>
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去掉重复并排序的方法:1、使用“Array.from(new Set(arr))”或者“[…new Set(arr)]”语句,去掉数组中的重复元素,返回去重后的新数组;2、利用sort()对去重数组进行排序,语法“去重数组.sort()”。

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方法:1、利用“点击元素对象.unbind("click");”方法,该方法可以移除被选元素的事件处理程序;2、利用“点击元素对象.off("click");”方法,该方法可以移除通过on()方法添加的事件处理程序。

foreach不是es6的方法。foreach是es3中一个遍历数组的方法,可以调用数组的每个元素,并将元素传给回调函数进行处理,语法“array.forEach(function(当前元素,索引,数组){...})”;该方法不处理空数组。

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