Javascript Map Function Parameters

Javascript arguments are passed by value: The final returned map uses the unique values from the test function as keys, which can be used to get the array of elements in each group. The javascript array.map() method calls a specific function for every element of the array and, as a result of this, returns a new array.

This data type is also referred to as an associative array or a dictionary. Function printkeyvalue (key, value) {console.log( key: @jinglei.y usually this is used to refer to the object a function is called as a method of.

Any value (both objects and primitive values) may be used as either a key or a value.

The map() method in javascript creates an array by calling a specific function on each element present in the parent array. In this case, i just set a specific this value that is my own object. This data type is also referred to as an associative array or a dictionary. This method accepts two parameters as mentioned above and described.