[英]Transform javascript array with objects with lodash
I'm wondering what the best way would be to transform my javascript array with objects. 我想知道最好的方法是用对象转换我的javascript数组。 I have tried making a fancy chain with lodash but I can't figure it out.
我曾尝试用lodash制作花式链,但我不知道。
I need to format the data this way because of the way the backend works. 由于后端的工作方式,我需要以这种方式格式化数据。
// from:
var something = [
{
name: 'foo',
stuff: [
{
id: 1
},
{
id: 2
},
{
id: 3
}
]
},
{
name: 'bar',
stuff: []
},
{
name: 'baz',
stuff: [
{
id: 7
},
{
id: 8
}
]
}
];
// to:
var transformed = [
{
name: 'foo',
included: {
included: [1, 2, 3]
}
},
{
name: 'bar',
included: {
included: []
}
},
{
name: 'baz',
included: {
included: [7, 8]
}
}
];
You can do this quite concisely with two map
calls (the array built in or lodash's map), one nested to handle the "included"
array within each object: 您可以使用两个
map
调用(内置数组或lodash的映射)非常简洁地完成此操作,一个嵌套以处理每个对象中的"included"
数组:
const transformed = something.map(it => {
return {
name: it.name,
included: {
included: it.stuff.map(thing => thing.id)
}
};
});
No need for lodash
, just use the Array.prototype.map
function : 不需要
lodash
,只需使用Array.prototype.map
函数 :
// Sorry no fancy ES6 => here :S
var res = something.map(function(item) {
item.included = {included : item.stuff.map(function(i) {return i.id})}
delete(item.stuff)
return item
})
Per @ssube 's comment: Per @ssube的评论:
var res = something.map(function(item) {
return {
included : {included : item.stuff.map(function(i) {return i.id})},
name: item.name
}
})
See this fiddle 看到这个小提琴
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