computed property name javascript
/*
Computed Property Names is ES6 feature which allows
the names of object properties in JavaScript OBJECT LITERAL NOTATION
to be determined dynamically, i.e. computed.
*/
let propertyname = 'c';
let obj ={
a : 11,
b : 12,
[propertyname] : 13
};
obj; // result is {a:11 , b:12 , c:13}
//or incase if you want a as your object you can set in this way
let a_value = {
[obj.a] = obj // a_value's key name as (a) and the complete (obj) present above itself will act as a value
};
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