79 lines
1.4 KiB
JavaScript
79 lines
1.4 KiB
JavaScript
export const parseFormat = function(a) {
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const split = a.split('1');
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return {
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left: split[0].length,
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right: split[1].length
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};
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};
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export const isNumber = a => {
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return !isNaN(+a);
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};
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export const parseNumbers = (a) => {
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return a.map(b => {
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if (isNumber(b)) {
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return parseFloat(b);
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}
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if (Array.isArray(b)) {
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return parseNumbers(b);
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}
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return b;
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});
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};
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export const dive = (arr, n) => {
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let result = arr;
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for (let i = 0; i < n; ++i) {
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result = result[result.length - 1];
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}
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return result;
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};
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export const deep = (arr, n, index = 0) => {
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if (n < 2) {
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return {arr, index};
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}
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let d = arr.reduce((a, b, i) => {
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if (Array.isArray(b)) {
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let {arr, index: x} = deep(b, n - 1, i),
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merged = a.concat(arr);
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index = x;
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return merged;
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}
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return a;
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}, []);
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return {arr: d, index};
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};
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export const diveTo = (arr, indexes, replace) => {
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let answer = [];
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if (indexes.some(Array.isArray)) {
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for (let index of indexes) {
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answer.push(diveTo(arr, index, replace));
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}
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} else {
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arr[indexes[0]] = replace;
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return replace;
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}
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return answer;
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};
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export const flatten = (arr) => {
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if (!Array.isArray(arr) || !arr.some(Array.isArray)) {
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return arr;
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}
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return arr.reduce((a, b) => {
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return a.concat(flatten(b));
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}, []);
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};
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export const removeSymbols = string => {
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return string.replace(/\W/g, '');
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};
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