|
|
@@ -0,0 +1,179 @@
|
|
|
+function runSort1(){
|
|
|
+ let persons = [
|
|
|
+ {name: 'Иван', age: 17},
|
|
|
+ {name: 'Мария', age: 35},
|
|
|
+ {name: 'Алексей', age: 73},
|
|
|
+ {name: 'Яков', age: 12},
|
|
|
+ ];
|
|
|
+
|
|
|
+ function mySort1(arr, param, boolean = false) {
|
|
|
+ arr.sort((a, b) => boolean === true ? a[param] - b[param] : b[param] - a[param])
|
|
|
+ }
|
|
|
+
|
|
|
+ mySort1(persons, 'age');
|
|
|
+ mySort1(persons, 'name', false);
|
|
|
+}
|
|
|
+
|
|
|
+function runSort2(){
|
|
|
+ let persons = [
|
|
|
+ {name: 'Иван', age: 17},
|
|
|
+ {name: 'Мария', age: 35},
|
|
|
+ {name: 'Алексей', age: 73},
|
|
|
+ {name: 'Яков', age: 12},
|
|
|
+ ];
|
|
|
+
|
|
|
+ function mySort2(person, param, boolean = false) {
|
|
|
+
|
|
|
+ for (let i = 0; i < person.length; i++) {
|
|
|
+ for (let k = i + 1; k < person.length; k++) {
|
|
|
+ if (boolean === true) {
|
|
|
+ if (person[i][param] > person[k][param]) {
|
|
|
+ let shelter = person[i][param];
|
|
|
+ person[i][param] = person[k][param];
|
|
|
+ person[k][param] = shelter;
|
|
|
+ }
|
|
|
+ } else if (boolean === false) {
|
|
|
+ if (person[i][param] < person[k][param]) {
|
|
|
+ let shelter = person[i][param];
|
|
|
+ person[i][param] = person[k][param];
|
|
|
+ person[k][param] = shelter;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return person;
|
|
|
+ }
|
|
|
+ mySort2(persons, 'age');
|
|
|
+ mySort2(persons, 'name', true);
|
|
|
+}
|
|
|
+
|
|
|
+function runArrayMap(){
|
|
|
+ const arr = ['1', {}, null, undefined, '500', 700];
|
|
|
+ let arrMap = arr.map(elem => {
|
|
|
+ return typeof elem === 'string' ? +elem : elem;
|
|
|
+ });
|
|
|
+}
|
|
|
+
|
|
|
+function runArrayReduce(){
|
|
|
+ const arr1 = ['0', 5, 3, 'string', null];
|
|
|
+ let arrReduce = arr1.reduce((accum, elem) => {
|
|
|
+ return typeof elem === 'number' ? accum * elem : accum;
|
|
|
+ }, 1);
|
|
|
+ console.log(arr1);
|
|
|
+ console.log(arrReduce);
|
|
|
+}
|
|
|
+
|
|
|
+function runObjectFilter(){
|
|
|
+ let phone = {
|
|
|
+ brand: 'meizu',
|
|
|
+ model: 'm2',
|
|
|
+ ram: 2,
|
|
|
+ color: 'black',
|
|
|
+ };
|
|
|
+
|
|
|
+ function myFilter(obj, callback) {
|
|
|
+ for (let key in obj) {
|
|
|
+ callback(key, obj[key]) || delete obj[key];
|
|
|
+ }
|
|
|
+ return obj;
|
|
|
+ }
|
|
|
+
|
|
|
+ myFilter(phone, function (key, value) {
|
|
|
+ return key == 'color' || value == 2;
|
|
|
+ });
|
|
|
+}
|
|
|
+
|
|
|
+function runObjectMap(){
|
|
|
+ function myMap(obj, callback) {
|
|
|
+ let newMap = {};
|
|
|
+ for (let key in obj) {
|
|
|
+ Object.assign(newMap, callback(key, obj[key]));
|
|
|
+ }
|
|
|
+ console.log(newMap);
|
|
|
+ return newMap;
|
|
|
+ }
|
|
|
+
|
|
|
+ myMap({name: 'Иван', age: 17}, function (key, value) {
|
|
|
+ let result = {};
|
|
|
+ result[key + '_'] = value + '$';
|
|
|
+ return result;
|
|
|
+ });
|
|
|
+}
|
|
|
+
|
|
|
+function runSum(){
|
|
|
+ function getSum(num) {
|
|
|
+ return num === 1 ? 1 :num + getSum(num - 1);
|
|
|
+ }
|
|
|
+ alert(`Результат рекурсивного вызова: ${getSum(+prompt('Введите целое число'))}`);
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+function runHTMLTree(){
|
|
|
+ function createComponent(tagName, subTags, attrs = {}, text = '') {
|
|
|
+ let $elem = document.createElement(tagName);
|
|
|
+ if (attrs) {
|
|
|
+ Object.entries(attrs).forEach(([key, value]) => $elem.setAttribute(key, value));
|
|
|
+ }
|
|
|
+
|
|
|
+ if (text) {
|
|
|
+ $elem.textContent = text;
|
|
|
+ } else {
|
|
|
+
|
|
|
+ let $children = subTags.map(function ({tagName, subTags, attrs, text}) {
|
|
|
+ return createComponent(tagName, subTags, attrs, text);
|
|
|
+ });
|
|
|
+ $children.forEach(child => $elem.appendChild(child));
|
|
|
+ }
|
|
|
+ return $elem;
|
|
|
+ }
|
|
|
+
|
|
|
+
|
|
|
+ let table = createComponent('table', [{
|
|
|
+ tagName: 'tr', subTags: [
|
|
|
+ {tagName: 'td', text: 'some text',},
|
|
|
+ {tagName: 'td', text: 'some text 2',}]
|
|
|
+ }], {border: 1,});
|
|
|
+
|
|
|
+ document.body.appendChild(table);
|
|
|
+}
|
|
|
+
|
|
|
+const tasksArray = [
|
|
|
+ ['sort1', runSort1],
|
|
|
+ ['sort2', runSort2],
|
|
|
+ ['array map', runArrayMap],
|
|
|
+ ['array reduce', runArrayReduce],
|
|
|
+ ['object filter', runObjectFilter],
|
|
|
+ ['object map', runObjectMap],
|
|
|
+ ['sum', runSum],
|
|
|
+ ['HTML Tree', runHTMLTree],
|
|
|
+];
|
|
|
+
|
|
|
+const $list = document.querySelector('.list');
|
|
|
+tasksArray.forEach(task => {
|
|
|
+ const [name, callback] = task;
|
|
|
+
|
|
|
+ const $div = document.createElement('div');
|
|
|
+ $div.className = 'div';
|
|
|
+
|
|
|
+ let $button = document.createElement('button');
|
|
|
+ $button.textContent = 'Запустить';
|
|
|
+ $button.className = 'button';
|
|
|
+ $button.onclick = callback;
|
|
|
+ $div.appendChild($button);
|
|
|
+
|
|
|
+ const $li = document.createElement('li');
|
|
|
+ $li.className = 'li';
|
|
|
+ $li.textContent = name;
|
|
|
+ $div.appendChild($li);
|
|
|
+ $list.appendChild($div);
|
|
|
+});
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+
|
