The _.join() function is used to converts all elements in the array into a string separated by a separator.
Syntax:
_.join(array, [separator=','])
Parameter: This method accepts two parameters as mentioned above and described below:
- array: It is the original array from which join operation is to be performed.
- separator: A string to separate each element of the array. If leave it by default array element separate by comma( , ).
Return Value: This function returns a string created by joining all the elements of the array using the separator.
Note: Install the lodash module by using command npm to install lodash before using the code given below.
Example 1: In this example, the function join() joins together the elements of the array into a string using ‘|’.
Javascript
// Requiring the lodash library let lodash = require("lodash"); // Original array to be joined let array = [ 1, 2, 3, 4, 5, 6 ]; let newArray = lodash.join(array, '|'); console.log("Before Join: " + array); // Printing newArray console.log("After Join: " + newArray); |
Output:
Example 2: In this example, the function join() joins together the elements of the array into a string using ‘, ‘ since it is the default value.
Javascript
// Requiring the lodash library let lodash = require("lodash"); // Original array to be joined let array = [ 1, 2, 3, 4, 5, 6 ]; let newArray = lodash.join(array); console.log("Before Join: " + array); // Printing newArray console.log("After Join: " + newArray); |
Output:
Example 3: In this example, the function join() joins together the elements of the array into a string using ‘ ‘ (empty string).
Javascript
// Requiring the lodash library let lodash = require("lodash"); // Original array to be joined let array = [ 1, 2, 3, 4, 5, 6 ]; let newArray = lodash.join(array,''); console.log("Before Join: " + array); // Printing newArray console.log("After Join: " + newArray); |
Output:
