Something strange is happening to me. I have a Map() filled with objects, but when I try to get an object using the map.get() method, I always receive 'undefined'.
The attached image provides a clear explanation of the issue. Why is X turning out to be undefined?
https://i.sstatic.net/89JzI.png
Thank you in advance for your help.
It seems there is a mismatch in data types.
console.log( "17" === 17 ); // returns false
To correctly match the key, you must convert id to a number:
var id = Number($scope.eventId); // id = 17
// ...
var y = mmap.get(id); // y = ["LOG_IN", "DISABLED"], ...
In a Map, keys are matched using strict equality (===), which requires the values to have matching types first.
The keys used in the Map seem to be numeric:
Map { ..., 17 => ["LOG_IN", "DISABLED"], ... }
However, the variable id is currently a string:
id = "17"
This information is based on the highlighted output in the debugger shown in orange.
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