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Introduction to Codewars Javascript Opposite Number

Code along with me as we solve 'Sum of differences in array', a Level 8 kyu # very slick example of split(), map(), join() methods and more. Code along with me as we solve 'Sum without highest and lowest this one uses the map() and join() methods map() info: ... this one uses the conditional (ternary) operator and the Boolean() constructor kata link: ... this one uses the push(), slice(), and filter() methods push() info: ...

Code along with me as we solve 'Find the first non-consecutive

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Codewars 8 kyu Opposite Number JavaScript
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Codewars 8 kyu Opposite Number JavaScript

311 views Live Report

all this needs is a hyphen.

Codewars - Javascript - Opposite number
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Codewars - Javascript - Opposite number

579 views Live Report

Code along with me as we solve '

Codewars - Javascript - Are they opposite?
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Codewars - Javascript - Are they opposite?

161 views Live Report

Code along with me as we solve 'Are they

Codewars 8 kyu Find Numbers Which Are Divisible by Given Number JavaScript
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Codewars 8 kyu Find Numbers Which Are Divisible by Given Number JavaScript

408 views Live Report

we solve this one with a simple filter() method.

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Last Updated: June 2, 2026

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