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Learning JavaScript Data Structures and Algorithms - Third Edition
book

Learning JavaScript Data Structures and Algorithms - Third Edition

by Loiane Avancini
April 2018
Beginner to intermediate content levelBeginner to intermediate
426 pages
10h 19m
English
Packt Publishing
Content preview from Learning JavaScript Data Structures and Algorithms - Third Edition

Outputting the array into a string

Finally, we come to the final two methods: toString and join.

If we want to output all the elements of the array into a single string, we can use the toString method as follows:

console.log(numbers.toString()); 

This will output the values 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, and 10 to the console.

If we want to separate the elements by a different separator, such as -, we can use the join method to do just this, as follows:

const numbersString = numbers.join('-');  
console.log(numbersString); 

The output will be as follows:

1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-10 

This can be useful if we need to send the array's content to a server or to be decoded (and then, knowing the separator, it is easy ...

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Learning JavaScript Data Structures and Algorithms

Learning JavaScript Data Structures and Algorithms

Loiane Avancini

Publisher Resources

ISBN: 9781788623872Supplemental Content