Map Function On Object Javascript
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Map Function On Object Javascript
Entries() returns an iterator with the [key, value] pairs in a map: .call() allows you to use the context of one object on another. Foreach() invokes a callback for each key/value pair in a map:
Alternatively, you can turn a map back into an object or an array with a single line of code. Map object can hold both objects and primitive values as either key or value. And the standard iteration for map returns same key/value pairs as map.entries().so we get a plain object with same key/values as the map.
.call() allows you to use the context of one object on another.
Foreach() calls a function for each key/value pair in a map: Foreach() invokes a callback for each key/value pair in a map: The latter in particular makes it impossible to just pass a function reference in the callback, requiring an in. And the standard iteration for map returns same key/value pairs as map.entries().so we get a plain object with same key/values as the map.
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