Js Map 2 Arrays
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Js Map 2 Arrays
You might consider using a for loop as follows: Map() creates a new array from calling a function for every array element. To compare two arrays in javascript, you should check that the length of both arrays should be the same, the objects presented in it be the same type, and each item in one array is equivalent to the counterpart in the compared array.
New map() creates a new map: The syntax of javascript map method is defined as like below : This is the callback method.
Set() sets the value for a key in a map:
In your first map this is the row argument. Firstly, by using filter () function we will retrieve those elements from an array that satisfies the given condition. Const people = [ {id:1, name:john}, {id:2, name:alice}]; New map() creates a new map:
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