Add dynamic key, value pairs to JavaScript array or hash table

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In ES6…

In ES6, you can use a destructuring assignment;

ary.push({[name]: val});

However, given this is ES6 syntax, the usual caveats apply; this will not work in some browsers (noticably, IE and Edge 13)… although Babel will transpile this for you.

Without ES6 (legacy browser support)…

You need to define an object and use square bracket notation to set the property;

var obj = {};

obj[name] = val;

ary.push(obj);

If you get the urge to read into it more, see this article on the differences between square bracket and dot notation.

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