The Underscore.js _.rCurry() method returns a curried version of the given function where arguments are processed from right to left.
Syntax:
_.rCurry( 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: This method returns a curried 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:
// Defining underscore contrib variable var _ = require('underscore-contrib'); // Function function div(a, b, c) { return a/b/c; } var curried = _.rCurry(div); console.log("Curried division is :", curried(2)(4)(16)); |
Output:
Curried division is : 2
Example 2:
// Defining underscore contrib variable var _ = require('underscore-contrib'); // Function function div(a, b, c, d) { return a-b-c-d; } var curried = _.rCurry(div); console.log("Curried Subtraction is :", curried(2)(4)(16)(44)); |
Output:
Curried Subtraction is : 22
Example 3: Arguments are reversed as shown below:
// Defining underscore contrib variable var _ = require('underscore-contrib'); // Function function div(a, b, c) { return ("a="+a+" and b="+b+" and c="+c); } var curried = _.rCurry(div); console.log(curried("a")("b")("c")); |
Output:
a=c and b=b and c=a
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