如何遍历包含对象的数组并访问它们的属性 [英] How to loop through an array containing objects and access their properties

问题描述

我想遍历数组中包含的对象并更改每个对象的属性.如果我这样做:

I want to cycle through the objects contained in an array and change the properties of each one. If I do this:

for (var j = 0; j < myArray.length; j++){

console.log(myArray[j]);

}

控制台应该调出数组中的每个对象，对吗?但实际上它只显示第一个对象.如果我控制台在循环之外记录数组，所有对象都会出现，所以肯定还有更多.

The console should bring up every object in the array, right? But in fact it only displays the first object. if I console log the array outside of the loop, all the objects appear so there's definitely more in there.

无论如何，这是下一个问题.我如何使用循环访问，例如数组中的 Object1.x?

Anyway, here's the next problem. How do I access, for example Object1.x in the array, using the loop?

for (var j = 0; j < myArray.length; j++){

console.log(myArray[j.x]);

}

这将返回未定义".循环外的控制台日志再次告诉我对象都具有x"的值.如何在循环中访问这些属性?

This returns "undefined." Again the console log outside the loop tells me that the objects all have values for "x". How do I access these properties in the loop?

我在其他地方被推荐为每个属性使用单独的数组，但我想确保我已经用尽了这条途径.

I was recommended elsewhere to use separate arrays for each of the properties, but I want to make sure I've exhausted this avenue first.

谢谢！

推荐答案

使用 forEach 它是一个内置的数组函数.Array.forEach():

Use forEach its a built-in array function. Array.forEach():

yourArray.forEach(function (arrayItem) {
    var x = arrayItem.prop1 + 2;
    console.log(x);
});

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