Newbie: How to create a Javascript map?

[espruino-discuss2]

Posted at 2023-01-23 by MarcEvan

Code that works in my browser/Node.js uses "new Map()" but on my Pixl I'm getting:

Uncaught ReferenceError: "Map" is not defined

Is there a require("something") I need to call first?

[gfwilliams]

Posted at 2023-01-24 by @gfwilliams

Hi - I'm afraid there's no Map object built into Espruino.

But what do you actually want to use it for? By default objects work basically the same way...

a = {};
a["foo"] = 42; // put
console.log(a["foo"]); // get
console.log("foo" in a); // check if inside
delete a["foo"] // remove
// ...

[espruino-discuss2]

Posted at 2023-01-24 by MarcEvan

! I hadn't considered using them like that, thanks!