javascript 将函数结果存储到变量
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Store function result to variable
提问by captainrad
How can I store the result of a function to a variable?
如何将函数的结果存储到变量中？
In navigating an object that contains an array, I am looking for one value, value1, once that is found I want to get the value of one of its properties, property1.
在导航包含数组的对象时，我正在寻找一个值value1，一旦找到，我想获取其属性之一的值property1。
The code I am using below is an example and is incorrect.
我在下面使用的代码是一个例子，是不正确的。
function loadSets(id){
clworks.containers.find(function(i){
return i.get('property1')===id;
});
}
My intent is to navigate the object below:
我的目的是导航下面的对象：
clworks.containers
containers[0].property0.id
containers[1].property1.id
I am trying to determine how to find which item in the array has a property value equal to the id used in the function and then store it as a variable.
我试图确定如何找到数组中哪个项目的属性值等于函数中使用的 id，然后将其存储为变量。
回答by Sunyatasattva
Simply:
简单地：
var myVar = loadSets(id);
EDIT
编辑
Ok, as much as I understand your question now, your situation is the following:
好的，据我现在了解您的问题，您的情况如下：
- You have an
arraycontaining objects calledcontainers; - You want to iterate through this
array, looking for the propertyidof the propertyproperty1which equals the one specified in the function calledloadSets(id); - Once found, store the object with the requested
idin a variable.
- 您有一个
array名为containers;的包含对象。 - 你想遍历这个
array，寻找与被调用函数中指定id的属性property1相等的属性loadSets(id)； - 找到后，将具有请求的对象存储
id在变量中。
Am I right? If so, this should solve your problem:
我对吗？如果是这样，这应该可以解决您的问题：
// This function iterates through your array and returns the object
// with the property id of property1 matching the argument id
function loadSets( id ) {
for(i=0; i < containers.length; i++) {
if( containers[i].property1.id === id )
return containers[i];
}
return false;
}
After this you just need to do what I said in the first answer to your question, triggering it however you want. I put up a quick JSBin for you. Try to put 10, or 20, in the inputfield and then hitting the findbutton; it will return the object you are looking for. Try putting any other number, it will return a Not found.
在此之后，您只需要按照我在您的问题的第一个答案中所说的去做，根据需要触发它。我为你提供了一个快速的 JSBin。尝试在input字段中放置 10 或 20，然后点击查找按钮；它将返回您正在寻找的对象。尝试输入任何其他数字，它会返回一个Not found。
回答by tjk
Currently your function, loadSets, isn't actually returning anything and so you cannot store a result from it.
目前，您的函数 loadSets 实际上并未返回任何内容，因此您无法从中存储结果。
Try:
尝试：
function loadSets(id){
return Base.containers.find(function(i){
return i.get('entityid')===id;
});
}
And to get a result into a variable:
并将结果转化为变量：
var result = loadSets(id);
