一线删除多个对象属性 [英] One liner to delete multiple object properties

问题描述

在某些时候我需要删除一些对象属性，但是我仍然需要其他一些对象属性，因此我不能只写 delete vm.model; 来删除所有对象.

I have a few object properties I need to delete at certain point but I still need others so I can't just write delete vm.model; to remove all of it.

目前我需要删除5个属性，但是列表很可能会增加，所以我不想结束.

At the moment there are 5 properties I need to delete but the list will most likely grow so I don't want to end up with.

delete vm.model.$$hashKey;
delete vm.model.expiryDate;
delete vm.model.sentDate;
delete vm.model.startDate;
delete vm.model.copied;

我正在寻找一种能为我做的衬板.我做了一些研究，发现_.omit lodash函数，但我不想最终只为单个函数下载整个库.

I'm looking for a one liner that will do it for me. I did some research and found the _.omit lodash function but I don't want to end up downloading whole library just for a single function.

是否有一个angularjs/js函数可以一次清除多个属性?

Is there a angularjs/js function that will clear multiple properties at once?

推荐答案

尚无本机函数可以执行此操作.但您始终可以循环并删除:

There is no native function that does this yet; but you can always just loop and delete:

const obj = {
  prop1: 'foo',
  prop2: 'bar',
  prop3: 'baz'
}

;[ 'prop1', 'prop2' ].forEach(prop => {
  delete obj[prop]
})

console.log(obj.prop1, obj.prop2, obj.prop3)
    

...找到了_.omit lodash函数，但我不想最终只为单个函数下载整个库.

... found the _.omit lodash function but I don't want to end up downloading whole library just for a single function.

只需将上面的循环放到一个可重用的函数中，即 deleteKeys(obj，keys).

Just put the above loop into a function which you can reuse, i.e deleteKeys(obj, keys).

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