javascript - underscore.js 如何合并 2 个集合

Question

我有两个集合 A 和 B。(A、B 具有完全相同的结构，但节点值不同)

现在我想将 A 添加到 B 中，顺序完全相同:A B 并且不合并或更改任何它们里面的节点。 (就像联合行动一样){ A } + {B}

我已经阅读了下划线的文档，但找不到完成这项工作的合适函数。

有什么想法吗？

==========用例子更新========示例是从一个更大的结构简化而来的，如果有错误请告诉我=========

var collection1 = [{
"date": "29 January 2014",
"items": [{
    "name": "Jack",
    "score": 90,
    "title": "programmer"
}, {
    "name": "TOM",
    "score": 52,
    "title": "designer"
}]
}, {
"date": "28 January 2014",
"items": [{
    "name": "Jim",
    "score": 30,
    "title": "driver"
}, {
    "name": "William",
    "score": 52,
    "title": "worker"
  }]
}]



var collect2 = [{
"date": "26 January 2014",
"items": [{
    "name": "Marry",
    "score": 92,
    "title": "teacher"
}, {
    "name": "TOM",
    "score": 52,
    "title": "designer"
}]

}]

========预期输出==============

[{
"date": "29 January 2014",
"items": [{
    "name": "Jack",
    "score": 90,
    "title": "programmer"
}, {
    "name": "TOM",
    "score": 52,
    "title": "designer"
}]
}, {
"date": "28 January 2014",
"items": [{
    "name": "Jim",
    "score": 30,
    "title": "driver"
}, {
    "name": "William",
    "score": 52,
    "title": "worker"
}]

}, {

"date": "26 January 2014",
"items": [{
    "name": "Marry",
    "score": 92,
    "title": "teacher"
}, {
    "name": "TOM",
    "score": 52,
    "title": "designer"
}]


}]

Answer 1

我认为您正在寻找的只是 Array.concat

var foo = ['a','b','c'];
var bar = ['d','e','f'];

var all = foo.concat(bar); // ['a','b','c','d','e','f'];