我有一个对象数组,如下所示:
[{headerName: "Test 1", field: "Test 1", type_id: 1}, {headerName: "Test 2", field: "Test 2", type_id: 2}, {headerName: "Test 3", field: "Test 3", type_id: 3}, {headerName: "Name", field: "Name", type_id: 3}, {headerName: "Income", field: "Income", type_id: 2}]
这只是数组可能看起来像什么的基本示例,因为它可以是任何长度。基本上我需要做的是当type_id为3时我需要为数组中的那些对象添加额外的键/值对。
我将如何做到这一点?
非常感谢任何帮助。
感谢您的时间。
更新:
我要添加的键/值对是:cellRenderer: customEditor
答案 0 :(得分:1)
es6 解决方案
yourArray = yourArray.map( obj => {
if( obj.type_id === 3 ){
return { ...obj, cellRenderer: customEditor };
}
return obj;
}
es5 解决方案
yourArray = yourArray.map( function( obj ){
if( obj.type_id === 3 ){
Object.defineProperty(obj, "cellRenderer", { value : customEditor })
}
return obj;
}
答案 1 :(得分:1)
使用Array.map
和Object.keys
函数的解决方案:
var arr = [{headerName: "Test 1", field: "Test 1", type_id: 1}, {headerName: "Test 2", field: "Test 2", type_id: 2}, {headerName: "Test 3", field: "Test 3", type_id: 3}, {headerName: "Name", field: "Name", type_id: 3}, {headerName: "Income", field: "Income", type_id: 2}],
extraObj = {'cellRenderer': 'customEditor'};
arr.map(function(obj){
if (obj['type_id'] === 3) {
Object.keys(this).forEach((k) => obj[k] = this[k]);
}
}, extraObj);
console.log(JSON.stringify(arr, 0, 4));
输出:
[
{
"headerName": "Test 1",
"field": "Test 1",
"type_id": 1
},
{
"headerName": "Test 2",
"field": "Test 2",
"type_id": 2
},
{
"headerName": "Test 3",
"field": "Test 3",
"type_id": 3,
"cellRenderer": "customEditor"
},
{
"headerName": "Name",
"field": "Name",
"type_id": 3,
"cellRenderer": "customEditor"
},
{
"headerName": "Income",
"field": "Income",
"type_id": 2
}
]
答案 2 :(得分:1)
var data = [{headerName: "Test 1", field: "Test 1", type_id: 1}, {headerName: "Test 2", field: "Test 2", type_id: 2}, {headerName: "Test 3", field: "Test 3", type_id: 3}, {headerName: "Name", field: "Name", type_id: 3}, {headerName: "Income", field: "Income", type_id: 2}];
var extend = { cellRenderer: 'customEditor' }
data = data.map( item => {
if( item.type_id == 3 ){
return Object.assign( item, extend );
}
return item;
});