从知道其ID的数组中删除对象 [英] Remove object from array knowing its id

问题描述

我有一个对象数组:

var myArr;

假设在页面加载时它包含10个具有以下结构的对象:

{
  Id: …,
  Name: …
}

如何通过Id从myArr中删除对象?

解决方案

尝试这样

var id = 2;
var list = [{
  Id: 1,
  Name: 'a'
}, {
  Id: 2,
  Name: 'b'
}, {
  Id: 3,
  Name: 'c'
}];
var index = list.map(x => {
  return x.Id;
}).indexOf(id);

list.splice(index, 1);
console.log(list);

JSFIDDLE

或者您可以使用 . filter()

赞

var id = 2;
var list = [{
  Id: 1,
  Name: 'a'
}, {
  Id: 2,
  Name: 'b'
}, {
  Id: 3,
  Name: 'c'
}];
var lists = list.filter(x => {
  return x.Id != id;
})
console.log(lists);

演示

I have an array of objects:

var myArr;

Let’s say that on page load it contains 10 objects with the following structure:

{
  Id: …,
  Name: …
}

How can I remove an object from myArr by its Id?

解决方案

Try like this

var id = 2;
var list = [{
  Id: 1,
  Name: 'a'
}, {
  Id: 2,
  Name: 'b'
}, {
  Id: 3,
  Name: 'c'
}];
var index = list.map(x => {
  return x.Id;
}).indexOf(id);

list.splice(index, 1);
console.log(list);

JSFIDDLE

Or you can utilize .filter()

Like this

var id = 2;
var list = [{
  Id: 1,
  Name: 'a'
}, {
  Id: 2,
  Name: 'b'
}, {
  Id: 3,
  Name: 'c'
}];
var lists = list.filter(x => {
  return x.Id != id;
})
console.log(lists);

DEMO

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