我尝试将obj id与数组对象id进行比较,从数组中移除对象id = 1并array.push(obj);
var array =[{"id":1,"name":"amine"},{"id":2,"name":"aymen"}] ;
var obj = {"id":1, "name":"youssef"};
array.push(obj);
var newArray = _.uniq(array , function(item, key, id) {
return item.name;
});
console.log(newArray) ;
newArray = [{" id":1," name":" amine"},{" id":2,& #34;姓名":" aymen"}];
我想要newArray = [{" id":2,"名称":" aymen"},{" id":1 ," name":" youssef"}];`
任何人都可以帮助我的大脑;)
答案 0 :(得分:0)
因此,您要删除数组中包含id
的任何条目,然后使用id
添加新对象。看起来最简单的事情就是按顺序完成这两件事:
array = _.filter(array, function(entry) { return entry.id != obj.id; });
array.push(obj);
实例:
var array = [{"id": 1, "name": "amine"}, {"id": 2, "name": "aymen"}];
var obj = {
"id": 1,
"name": "youssef"
};
array = _.filter(array, function(entry) {
return entry.id != obj.id;
});
array.push(obj);
snippet.log(JSON.stringify(array));
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如果您不喜欢使用_.filter
,可以使用_.find
然后使用Array#splice
:
var index = _.find(array, function(entry) { return entry.id == obj.id; });
if (index !== undefined) {
array.splice(index, 1);
}
array.push(obj);
实例:
var array = [{
"id": 1,
"name": "amine"
}, {
"id": 2,
"name": "aymen"
}];
var obj = {
"id": 1,
"name": "youssef"
};
var index = _.find(array, function(entry) {
return entry.id == obj.id;
});
if (index !== undefined) {
array.splice(index, 1);
}
array.push(obj);
snippet.log(JSON.stringify(array));
<script src="http://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.4.4/underscore-min.js"></script>
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<script src="http://tjcrowder.github.io/simple-snippets-console/snippet.js"></script>
答案 1 :(得分:0)
我也尝试
array = _.without(array , _.findWhere(array , {id: obj.id}));
array.push(obj);
它有效;)!