How do I dynamically name an element in an object in javascript? -

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i creating object in function:

createobject(attr) {     return {         attr: "test"     } }

i want attr named function parameter. right end object:

{     attr: "test" }

how do this?

create new object , use bracket notation set property.

function createobject(attr) {     var obj = {};     obj[attr] = "test";     return obj; }

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