[英]How to remove an object from Object array in angularjs
我有一個對象數組,想從該數組中刪除一個對象:
var objectArray = [{"id":"John Doe","label":"John Doe","shape":"image","image":"app/data/img/user_icon.png","color":{"background":"#db630d","border":"#7c3400"},"level":0},{"id":"JavaScript","label":"JavaScript","size":30,"shape":"dot","color":{"background":"#00637c"},"level":1},{"id":"C#","label":"C#","size":40,"shape":"dot","color":{"background":"#00637c"},"level":1},{"id":"css","label":"css","size":40,"shape":"dot","color":{"background":"#00637c"},"level":1},{"id":"develop","label":"develop","size":40,"shape":"box","color":{"background":"#65f759","border":"#65f759"},"level":2},{"id":"programming","label":"programming","size":40,"shape":"box","color":{"background":"#65f759","border":"#65f759"},"level":2},{"id":"frontend","label":"frontend","size":40,"shape":"box","color":{"background":"#65f759","border":"#65f759"},"level":2}]
var singleNode = {"id":"frontend","label":"frontend","size":40,"shape":"box","color":{"background":"#65f759","border":"#65f759"},"level":2}
我想從上述對象數組中刪除該對象。如何使用angularjs或javascript做到這一點?
如果每個對象的id
是唯一的,則可以使用數組filter
。
將id
視為唯一
var objectArray = [{"id":"John Doe","label":"John Doe","shape":"image","image":"app/data/img/user_icon.png","color":{"background":"#db630d","border":"#7c3400"},"level":0},{"id":"JavaScript","label":"JavaScript","size":30,"shape":"dot","color":{"background":"#00637c"},"level":1},{"id":"C#","label":"C#","size":40,"shape":"dot","color":{"background":"#00637c"},"level":1},{"id":"css","label":"css","size":40,"shape":"dot","color":{"background":"#00637c"},"level":1},{"id":"develop","label":"develop","size":40,"shape":"box","color":{"background":"#65f759","border":"#65f759"},"level":2},{"id":"programming","label":"programming","size":40,"shape":"box","color":{"background":"#65f759","border":"#65f759"},"level":2},{"id":"frontend","label":"frontend","size":40,"shape":"box","color":{"background":"#65f759","border":"#65f759"},"level":2}] var singleNode = {"id":"frontend","label":"frontend","size":40,"shape":"box","color":{"background":"#65f759","border":"#65f759"},"level":2} var filteredArray = objectArray.filter(function(item){ return item.id !== "frontend"; }); console.log(filteredArray)
let index = objectArray.findIndex(object => object.id === singleNode.id);
if (index != -1) {
objectArray.splice(index, 1);
}
首先,找到要刪除的元素的index
:
var array = [2, 5, 9];
var index = array.indexOf(5);
然后使用splice
將其移除:
if (index > -1) {
array.splice(index, 1);
}
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.