Add new version in repository

build/js/include/core/helpers.js

@@ -0,0 +1,21 @@
+// Array Helpers
+const countOccurrences = arr => arr.reduce((prev, curr) => (prev[curr] = ++prev[curr] || 1, prev), {});
+const isEmpty = arr => !(Array.isArray(arr) && arr.length > 0 && arr.filter(el => el === undefined).length > 0)
+const isEqual = (a, b) => JSON.stringify(a.sort()) === JSON.stringify(b.sort());
+const countBy = (arr, prop) => arr.reduce((prev, curr) => (prev[curr[prop]] = ++prev[curr[prop]] || 1, prev), {});
+const transpose = matrix => matrix[0].map((col, i) => matrix.map(row => row[i]));
+
+// Dom Helpers
+const insertAfter = (ele, anotherEle) => anotherEle.parentNode.insertBefore(ele, anotherEle.nextSibling);
+const insertBefore = (ele, anotherEle) => anotherEle.parentNode.insertBefore(ele, anotherEle);
+const insertHtmlAfter = (html, ele) => ele.insertAdjacentHTML('afterend', html);
+const insertHtmlBefore = (html, ele) => ele.insertAdjacentHTML('beforebegin', html);
+
+const goTo = url => location.href = url;
+const replace = (ele, newEle) => ele.parentNode.replaceChild(newEle, ele);
+const toNumbers = arr => arr.map(Number);
+const wait = async (milliseconds) => new Promise((resolve) => setTimeout(resolve, milliseconds));
+
+const capitalize = str => `${str.charAt(0).toUpperCase()}${str.slice(1)}`;
+const slugify = string => string.toLowerCase().replace(/\s+/g, '-').replace(/[^\w-]+/g, '');
+const isNumeric = str => !/[^0-9]/.test(str);