Andreas Bee beephotography

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beephotography / flatArrayToTree.php

Last active November 13, 2019 07:36

Converts a flat array to a tree structure with references

	<?php

	/**
	* @param array $navigation
	* @return array
	*/
	private function flatArrayToTree(array $navigation): array
	{
	$navigationTree = [];

beephotography / swapArrayElements.js

Last active October 27, 2019 13:09

Swaps to elements of an array without mutating the original array. Returns the swapped array.

	const swapArrayElements = (arr, index1, index2) => arr.map((val, idx) => {
	if (idx === index1) return arr[index2];
	if (idx === index2) return arr[index1];
	return val;
	});
	const foo = [1, 2, 3, 4, 5];
	const swapped = swapArrayElements(foo, 1, 3);
	console.log(foo); //=> [1, 2, 3, 4, 5]
	console.log(swapped); //=> [ 1, 4, 3, 2, 5 ]