Underscore.js _.juxt() Method
Last Updated :
11 Apr, 2023
The _.juxt() method returns a function whose return value is an array of the results after calling each of the functions with the given arguments.
Syntax:
_.juxt( function1, function2, .., function );
Parameters: This method takes n functions containing the logic to return values.
Return Value: This method returns a function.
Note: This will not work in normal JavaScript because it requires the underscore.js contrib library to be installed.
underscore.js contrib library can be installed using npm install underscore-contrib –save.
Example 1: In this example, we will see the use of the _.juxt() method
javascript
const _ = require( 'underscore-contrib' );
function firstG(val) {
return val[0];
}
function F(val) {
return val[5];
}
function lastG(val) {
return val[8];
}
let firstAndLastChars = _.juxt(firstG, F, lastG);
console.log(firstAndLastChars( "GeeksforGeeks" ));
|
Output:
[ 'G', 'f', 'G' ]
Example 2: In this example, we will see the use of the _.juxt() method
javascript
const _ = require( 'underscore-contrib' );
function a() {
return "a" ;
}
function b() {
return "b" ;
}
function c() {
return "c" ;
}
function d() {
return "d" ;
}
let firstAndLastChars = _.juxt(a, b, c, d);
console.log(firstAndLastChars( "GeeksforGeeks" ));
|
Output:
[ 'a', 'b', 'c', 'd' ]
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