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Uzwername / plain-recursion-incrementNestedNumbers.js
Created March 21, 2021 02:46
// Fetched from server
const nestedNumbers = [
[[0], [[[[[[[1, 2]]]]]]], [3]],
[[[4], [[5]]], [[[6, 7, 8]]]],
[9]
];
const incrementNestedNumbers = (arrayWithNums) => {
for (let i = 0; i < arrayWithNums.length; i++) {
if (Array.isArray(arrayWithNums[i])) { // if array
@Uzwername
Uzwername / plain-recursion-deeply-nested-frozen-array.js
Created March 21, 2021 02:44
const nestedNumbers = [
[[0], [[[[[[[1, 2]]]]]]], [3]],
[[[4], [[5]]], [[[6, 7, 8]]]],
[9]
];
@Uzwername
Uzwername / plain-recursion-combinations-creator-example.js
Created March 21, 2021 02:37
out = [];
for (let i = 0; i < 2; i++) {
for (let j = 0; j < 2; j++) {
out.push([ i, j ]);
}
}
console.log(out); // -> [[ 0, 0 ], [ 0, 1 ], [ 1, 0 ], [ 1, 1 ]]
@Uzwername
Uzwername / plain-recursion-sum-spec.js
Created March 21, 2021 02:32
sum();
sum(1, 1)();
sum(1)(5)(12)();
sum(1)(132, 4)();
sum(1, 2, 3)(7, 8, 9)(5)();
sum(1, 1)(4)(6, 13, 7)(2)(3)(2)(2, 1)();
@Uzwername
Uzwername / plain-recursion-comments-structure.js
Created March 21, 2021 02:30
const comments = [
{
text: 'comment 1',
comments: [
{
text: 'comment 2',
comments: [],
},
],
},
@Uzwername
Uzwername / plain-recursion-traverseHtmlElement.js
Created March 21, 2021 02:29
const traverseHtmlElement = (rootElement, _level = 0) => {
// Get all element's children stringified if any
let rootChildren = '';
if (rootElement.childElementCount) {
rootChildren = traverseHtmlElement(rootElement.firstElementChild, _level + 1);
}
// Get all element's siblings stringified if any
let rootSiblings = '';
const nextSibling = rootElement.nextElementSibling;
@Uzwername
Uzwername / plain-recursion-attempt-to-traverse-html-iteratively-example.js
Created March 21, 2021 02:27
const bodyChildren = [...document.body.children];
for (let i = 0; i < bodyChildren.length; i++) {
// So... how do we get children of each body child?
analyseElement(bodyChildren[i]);
}
@Uzwername
Uzwername / plain-recursion-flatToBase.js
Created March 21, 2021 02:23
const flatToBase = array => array.reduce(
(accumulator, value) => accumulator.concat(
Array.isArray(value) ? flatToBase(value) : value
),
[],
);
flatToBase([[[[[[[ 42 ]]]], 36]]]); // -> [ 42, 36 ]
@Uzwername
Uzwername / plain-recursion-flat-call-example.js
Created March 21, 2021 02:21
nestedArrays.flat(Infinity);
@Uzwername
Uzwername / plain-recursion-mirrorNumbersUpTo.js
Created March 21, 2021 02:18
const mirrorNumbersUpTo = (num) => {
console.log(num);
if (num > 0) {
mirrorNumbersUpTo(num - 1);
console.log(num);
}
};
mirrorNumbersUpTo(5); // ➡️ logs 5, 4, 3, 2, 1, 0, 1, 2, 3, 4, 5