for example:
var obj = {a: 1, b: 2, c: 3, d: 4}
Object.certainFunction (obj, ["a","b"])
= > {a: 1, b: 2}
method like this?
for example:
var obj = {a: 1, b: 2, c: 3, d: 4}
Object.certainFunction (obj, ["a","b"])
= > {a: 1, b: 2}
method like this?
No, you need to write your own extension.
function certainFunction(obj, keys) {
return keys.reduce((result, key) => {
if (obj.hasOwnProperty(key)) {
result[key] = obj[key];
}
return result;
}, {});
}
var obj = { a: 1, b: 2, c: 3, d: 4 };
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