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@@ -0,0 +1,127 @@
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+let tasks = {
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+ a: (value) => {
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+ alert(value);
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+ },
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+
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+ cube: (a) => {
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+ console.log(a ** 3);
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+ },
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+
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+ avg2: (a,b) => {
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+ console.log((a + b) / 2);
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+ },
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+
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+
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+ sum3: (a,b,c = 0) => {
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+ console.log(a + b + c);
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+ },
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+
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+ intRandom: (min, max = min) => {
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+ console.log(Math.floor(Math.random() * (max - min + 1) + min));
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+ },
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+
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+ greetAll: (...args) => {
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+ alert(`Hello ${args}`);
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+ },
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+
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+ sum: (...a) => {
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+ let sum = 0;
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+ for (let arg in a) {
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+ sum += a[arg];
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+ }
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+ console.log(sum);
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+ },
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+};
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+
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+let sample = prompt("Введите название задания")
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+switch (sample){
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+ case "a":
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+ tasks.a("Привет!");
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+ break
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+
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+ case "cube":
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+ tasks.cube(3);
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+ break
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+
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+ case "avg2":
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+ tasks.avg2(1,2);
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+ tasks.avg2(10,5);
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+
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+ break
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+
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+ case "sum3":
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+ tasks.sum3(1,2,3);
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+ tasks.sum3(5,10,100500);
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+ tasks.sum3(5,10);
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+ break
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+
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+ case "intRandom":
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+ tasks.intRandom(2, 15);
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+ tasks.intRandom(-1,-1);
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+ tasks.intRandom(0,1);
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+ tasks.intRandom(10);
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+ break
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+
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+ case "greetAll":
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+ tasks.greetAll("Superman");
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+ tasks.greetAll("Superman", "SpiderMan");
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+ tasks.greetAll("Superman", "SpiderMan", "Captain Obvious");
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+ break
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+
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+ case "sum":
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+ tasks.sum(1);
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+ tasks.sum(2);
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+ tasks.sum(10,20,40,100);
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+ break
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+};
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+
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+// arr map
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+let arr = ["1", {}, null, undefined, "500", 700];
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+let newArr = arr.map((e) => typeof e === 'string' ? Number(e) : e);
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+console.log(newArr);
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+
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+// array reduce
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+let arr2 = ["0", 5, 3, "string", null];
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+console.log(arr2.filter((n) => typeof n === 'number').reduce((a,b) => a * b));
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+
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+
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+// object filter
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+let phone = {
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+ brand: "meizu",
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+ model: "m2",
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+ ram: 2,
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+ color: "black",
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+};
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+
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+filter = (obj, callback) => {
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+ for (let key in obj){
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+ callback(key, obj[key]) || delete obj[key];
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+ }
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+ console.log(obj);
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+};
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+
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+filter(phone,(key,value) => key == "color" || value == 2);
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+
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+
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+//object map
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+map = (object, callback) => {
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+ for (let key in object) {
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+ let obj = callback(key, object[key])
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+ delete object[key];
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+ for (key in obj) {
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+ object[key] = obj[key]
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+ }
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+ }
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+};
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+
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+let object = {
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+ name: 'Иван',
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+ age: '17'
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+};
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+
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+map({name: "Иван", age: 17},function(key,value){
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+ var result = {};
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+ result[key+"_"] = value + "$";
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+ console.log(result);
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+});
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+
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