[英]Fill an array in javascript inside an object
i'm new to javascript and i have a little issue. 我是javascript新手,但有一个小问题。 I have an array like this:
我有一个像这样的数组:
name = ["Alex","John", "Mark"].
After that, i have and object with an array inside like this: 之后,我有一个对象,里面有一个像这样的数组:
ObjectNames = {
labels: []
}
I want to fill the labels array with the content of tha name array like this: 我想用tha名称数组的内容填充labels数组,如下所示:
labels = [name[0], name[1], name[2]]
How to do this? 这个怎么做?
What you did in your question already solves your problem, but you can try this: 您在问题中所做的事情已经解决了您的问题,但是您可以尝试以下操作:
ObjectNames = {
labels: names
}
This will make a copy of names and store it in labels. 这将复制名称并将其存储在标签中。
Let me know if it works 让我知道是否有效
Edit: As Andrew Li pointed out, there's no need to use slice, as JavaScript automatically creates a copy 编辑:正如安德鲁·李(Andrew Li)指出的那样,无需使用切片,因为JavaScript会自动创建一个副本
You could do it like this : 您可以这样做:
var _name = ["Alex","John", "Mark"]; var ObjectNames = { labels: [] }; _name.forEach(function(e) { ObjectNames.labels.push(e); }); console.log(ObjectNames.labels);
There are lots of way you can do that 有很多方法可以做到这一点
Try like this 这样尝试
var ObjectNames = {
labels: [name[0], name[1], name[2]]
}
or 要么
var ObjectNames = {
labels: name
}
or 要么
var ObjectNames = {
labels: name.slice()
}
or 要么
ObjectNames = {
labels: []
}
ObjectNames.labels=name ;
or like this 或像这样
for(var i=0;i<name.length;i++)
ObjectNames.labels.push(name[i])
or 要么
name.forEach(x=> ObjectNames.labels.push(x))
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