The Underscore.js _.curry3() method returns a curried version of the given function but will curry exactly three arguments, no more or less.
Syntax:
_.curry3( fun )
Parameters: This method takes a single parameter as listed above and discussed below:
- fun: This is the given function passed as parameter.
Return Value: It returns a curried version of the function.
Note: To execute the below examples, you have to install the underscore-contrib library by using this command prompt and execute the following command.
npm install underscore-contrib
Example 1:Â
// Defining underscore contrib variable var _ = require('underscore-contrib');   // Function function fun(a, b, c) {     return a*b*c; }   // Making curried function var gfgFunc = _.curry3(fun);   // Only operates for exactly two arguments console.log("Multiplication is :",     gfgFunc(20)(23)(2)); |
Output:
Multiplication is : 920
Example 2:
// Defining underscore contrib variable var _ = require('underscore-contrib');   // Function function fun(a, b, c) {     return a-b-c; }   // Making curried function var gfgFunc = _.curry3(fun);   // Only operates for exactly two arguments console.log("Subtraction is :",     gfgFunc(25)(23)(1)); |
Output:Â
Subtraction is : 1
Example 3:
// Defining underscore contrib variable var _ = require('underscore-contrib');   // Function function fun(x, y, z) {     return arguments; }   // Making curried function var gfgFunc = _.curry3(fun);   // Only operates for exactly three arguments console.log("Curried Arguments are :",     gfgFunc("a")("b")("c")); |
Output:Â
Curried Arguments are : [Arguments] { '0': 'a', '1': 'b', '2': 'c' }
Example 4:
// Defining underscore contrib variable var _ = require('underscore-contrib');Â Â Â // Function function fun(x, y, z) { Â Â Â Â return arguments; } Â Â // Making curried function var gfgFunc = _.curry3(fun); Â Â // Only operates for exactly three arguments // For two args, it returns function console.log(gfgFunc("a")("b")); |
Output:Â
[Function: mustBeUnary]
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