diff --git a/blog_images/little-tree.jpg b/blog_images/little-tree.jpg new file mode 100644 index 000000000..2e36bf57b Binary files /dev/null and b/blog_images/little-tree.jpg differ diff --git a/blog_posts/js-array-min-max.md b/blog_posts/js-array-min-max.md new file mode 100644 index 000000000..321a57c5f --- /dev/null +++ b/blog_posts/js-array-min-max.md @@ -0,0 +1,21 @@ +--- +title: "Tip: Min and max value in a JavaScript array" +type: tip +tags: javascript,array,math +authors: chalarangelo +cover: blog_images/little-tree.jpg +excerpt: When working with numeric arrays in JavaScript, you might find yourself in need of finding the minimum or maximum value. Here's a quick and easy way to do it. +--- + +When working with numeric arrays in JavaScript, you might find yourself in need of finding the minimum or maximum value. Luckily, JavaScript's `Math` built-in object has got you covered. You can simply use `Math.min()` or `Math.max()` combined with the spread operator (`...`), as both functions accept any number of arguments. + +```js +const nums = [2, 4, 6, 8, 1, 3, 5, 7]; + +Math.max(...nums); // 8 +Math.min(...nums); // 1 +``` + +For more complex cases (i.e. finding the min/max value in an array of objects), you might have to resort to `Array.prototype.map()` or `Array.prototype.reduce()`, but our [minBy](/js/s/min-by) or [maxBy](/js/s/max-by) snippets might be all you need. + +**Image credit:** [Luke Porter](https://unsplash.com/@lukeporter?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText) on [Unsplash](https://unsplash.com?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText)