Map In Javascript Es6 Example
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Map In Javascript Es6 Example
Let map = new map ( [iterable]); However, unlike an object, a map can contain objects, functions and other data types as key. When map () is finished running, it creates and populates a new array with the results.
As the name speaks for itself, it can be reduced to anything and can behave like map, find, filter or any other javascript array function. Get () gets the value for a key in a map. A javascript map is an object that stores key/value pairs.
Convert the array back to a map.
Static methods are introduced in es6. In es5, we would need to use a for loop to iterate over the array and push the results to a previously created empty array. The callback function is provided with three parameters as follows: The above code snippet works on an array and reduces.
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