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when I try these code:
const map=new Map([['a', 1],['b', 2],['c', 3],['d', 4],['e', 5]]);
console.log(map.keys());
map.delete('a')
console.log(map.keys());
the chrome console will show these:
MapIterator {"a", "b", "c", "d", "e"}
MapIterator {"c", "d", "e"}
"b" why not show up？
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The delete() method removes the specified element from a Map object by key.
map. clear(obj); map. obj() takes an object as a parameter and removes each and every value so as to make it empty.
To delete a key from a map, we can use Go's built-in delete function. It should be noted that when we delete a key from a map, its value will also be deleted as the key-value pair is like a single entity when it comes to maps in Go.
delete() function in JavaScript. The delete() function of Map object accepts a string representing the key of an element of a map and deletes from the current Map object. This function returns true if the specified key exists in the map object else it returns false.
This is a browser compatibility issues, that happens with map.keys(), map.values(), map.entries().
The issue occurs in chrome when deleting the first key but it works when well in safari.
Also these properties don't even work in Mozilla, just returns an empty Map iterator
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