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Lodash _.flip

Overview

Overview:

The _.flip method is a utility function provided by the popular JavaScript library Lodash. It creates a new function with the same functionality as the original function, but with the order of its arguments reversed.

Syntax:

_.flip(func)

Parameters:

The flip method takes a single parameter, func, which is the original function to be flipped.

Return Values:

The _.flip method returns a new function with the same functionality as the original function, but with the order of its arguments reversed.

Usage:

The _.flip method can be used to create a new function that takes its arguments in reverse order. For example, consider the following function that takes two arguments and returns their sum:

function sum(a, b) { return a + b; }

Using _.flip, we can create a new function that takes its arguments in reverse order:

var flippedSum = _.flip(sum);

Now, calling flippedSum(2, 3) returns 5, which is the same as calling sum(3, 2).

Benefits:

The _.flip method can be used to create new functions on the fly that perform the same operation as an existing function but with the arguments reversed. This can be useful when working with functions that take multiple arguments, especially when those arguments are not in a convenient order.

Conclusion:

In conclusion, the _.flip method is a useful utility function provided by Lodash that creates a new function with the same functionality as the original function, but with its arguments reversed. It can be used to quickly and easily create new functions on the fly that take arguments in the desired order.