在javascript数组中动态添加对象

Question

I have json:

var obj = '{"Form":[],"Provider":[]}';

I push the data with variable value to make dynamic objects:

var pName = 'Tester';
var data = {
    pName :["testing"]
};
console.log(obj['Provider'].push(data));

But that adds pName as variable name but not variable value that is Tester , i tried with +pName+ that also not works.

Returns:

{"Form":[],"Provider":[{"pName":["Testing"]}]}

Any help would be appreciated.

Answer 1

You must use [] syntax near the property name.It will evaluate the expression in the [] and returns the value.

See the example.Here the data's property is with the name 'Tester' .

 var obj = {"Form":[],"Provider":[]}; var pName = 'Tester'; var data = { [pName] :["testing"] }; console.log(data.pName); // undefined console.log(data.Tester); // OK obj['Provider'].push(data); console.log(obj);