1165639 - Map string key displayed as number in web console

Status: RESOLVED FIXED

(DevTools :: Console, defect, P3)

Description

[Daniel]

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:41.0) Gecko/20100101 Firefox/41.0
Build ID: 20150513030209

Steps to reproduce:

Run the following code in the scratchpad/web console

let m = new Map();
m.set(5, 5);
m.set('5', 5);
for (let [k, v] of m) {
    console.log(k);
}


Actual results:

The console logs are grouped, and the keys are highlighted as numbers (green) in the console. (If they come in the other order, they also get grouped but highlighted as strings.)


Expected results:

The logs should not be grouped, and they should be highlighted different from each other.

The issue does not occur if one simply runs 

console.log(5);
console.log('5');

Comment 1

[Nicolas Chevobbe [:nchevobbe]]

The logs are not grouped anymore