Lodash _.bitwiseLeft() Method

Lodash is a JavaScript library that works on the top of underscore.js. Lodash helps in working with arrays, strings, objects, numbers, etc.

The _.bitwiseLeft() method is used to return the result of using the Bitwise Left operator (<<) on all the given arguments.

Syntax:

_.bitwiseLeft( val1, val2,..., valn )

Parameters: This method takes a variable number of parameters and operates the Bitwise Left operator on them.

Return Value: This method returns the result of using the Bitwise Left operator on all the arguments.

Note: This will not work in normal JavaScript because it requires the lodash.js contrib library to be installed. Lodash.js contrib library can be installed using npm install lodash-contrib.

Example 1:

Javascript

// Adding lodash-contrib library
var _ = require('lodash-contrib');

// Using the _.bitwiseLeft() method
var bL  = _.bitwiseLeft( 1, 3, 5, 7, 9 );

console.log("The bitwiseLeft is :", bL);

Output:

The bitwiseLeft is : 16777216

Example 2:

Javascript

// Adding lodash-contrib library
var _ = require('lodash-contrib');

// Using the _.bitwiseLeft() method
var bL  = _.bitwiseLeft( 1, 3, 2 );

console.log("The bitwiseLeft is :", bL);

Output:

The bitwiseLeft is : 32

Example 3:

Javascript

// Adding lodash-contrib library
var _ = require('lodash-contrib');

// Using the _.bitwiseLeft() method
var bL  = _.bitwiseLeft( 1 );

console.log("The bitwiseLeft is :", bL);

Output:

The bitwiseLeft is : 1