JavaScript的发现在一个阵列的特定属性的对象 [英] javascript find an object with specific properties in an array

问题描述

我需要一个扩展现有的code，不能改变它。
有此数组：

I need to make an extension to existing code, can't change it. There's this array:

var availableTags = [
        { label: "Yoga classes", category: "EDUCATIONAL" },
        { label: "Cooking classes", category: "EDUCATIONAL" },
        { label: "Cheese tastings", category: "EDUCATIONAL" },
        { label: "Maker Workshops", category: "PRACTICAL" },
        { label: "Seminars", category: "PRACTICAL" },
        //many more of these
];

现在我需要检查，如果在输入框中输入的文本包含在标签，例如之一如果用户输入瑜伽班=> OK，如果瑜伽=> NOK，sdsdf=> NOK等。

Now I need to check if a text entered in an input box is included in one of the labels, e.g. if the user enters "Yoga classes" => OK, if "Yoga" => NOK, "sdsdf" => NOK, etc.

什么是做到这一点的最好方法是什么？我不知道我可以使用Array.indexOf，因为我不知道如何对象传递给函数，我会尝试通过阵列（约40项）循环和比较每个对象。

What is the best way to do this? I am not sure I can use Array.indexOf as I am not sure how to pass the Object to the function, I would try looping through the array (around 40 entries) and compare each object.

推荐答案

您可以使用的 Array.some 方式：

测试数组中某些元素是否通过由提供的函数实现的测试​​。

Tests whether some element in the array passes the test implemented by the provided function.

那么你的code看起来是这样的：

Then your code would look something like:

var isFound = availableTags.some(function(el) {
    return el.label === 'Yoga classes';
});

的注：一些方法有待匀。的

Note: some method needs to be shimmed.

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