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+//Task a
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+// function a(b){
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+// alert(b);
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+// }
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+// a("Привет!");
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+
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+
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+//Task cube
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+// function cube(a){
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+// return (a*a*a);
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+// }
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+// cube(3);
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+
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+
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+//Task avg2
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+// function avg2 (a, b) {
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+// return ((a + b) / 2);
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+// }
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+//avg2(1,2) // возвращает 1.5
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+//avg2(10,5) // возвращает 7.5
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+
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+
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+
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+//Task sum3
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+// function sum3 (a, b, c = 0) {
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+// return (a + b + c) ;
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+// }
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+// sum3(1,2,3) // => 6
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+// sum3(5,10,100500) // => 100515
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+// sum3(5,10) // => 15
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+
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+
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+
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+//Task intRandom
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+// function intRandom (a, b) {
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+// let c = b - a;
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+// b ? b = a : a = 0;
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+
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+// if (a === b) {
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+// return a;
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+// }
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+
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+// (b - a) ? c : c = a ;
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+
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+// return(Math.round( Math.random() * c ));
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+// }
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+// intRandom(2,15) // возвращает целое случайное число от 2 до 15 (включительно)
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+// intRandom(-1,-1) // вернет -1
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+// intRandom(0,1) // вернет 0 или 1
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+// intRandom(10) // вернет 0 до 10 включительно
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+
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+
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+
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+
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+//Task greetAll
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+// function greetAll (arg) {
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+// let str = `Hello`;
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+// for (let i of arguments) {
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+// str += ' ' + i + ',';
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+// }
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+// str = str.slice(0, -1);
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+// alert(str);
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+// }
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+// greetAll("Superman");
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+// greetAll("Superman", "SpiderMan");
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+// greetAll("Superman", "SpiderMan", "Captain Obvious");
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+
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+
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+
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+//Task sum
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+// function sum (...arg) {
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+// let acum = 0;
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+// for (let value of arg) {
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+// acum += value;
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+// }
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+// return acum;
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+// }
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+// sum(1) // => 1
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+// sum(2) // => 2
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+// sum(10,20,40,100) // => 170
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+
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+
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+// let sample = prompt("Введите название задания");
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+
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+// switch (sample.toLowerCase()) {
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+
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+// case "a": function a(b){
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+// alert(b);
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+// }
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+// a("Привет!");
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+// break;
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+
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+// case "cube": function cube(a) {
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+// return (a*a*a);
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+// }
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+// cube(3);
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+// break;
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+
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+// case "avg2": function avg2 (a, b) {
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+// return ((a + b) / 2);
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+// }
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+// avg2(1,2);
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+// avg2(10,5);
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+// break;
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+
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+// case "sum3": function sum3 (a, b, c = 0) {
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+// return (a + b + c) ;
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+// }
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+// sum3(1,2,3);
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+// sum3(5,10,100500);
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+// sum3(5,10);
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+// break;
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+
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+// case "intrandom": function intRandom (a, b) {
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+// let c = b - a;
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+// b ? b = a : a = 0;
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+
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+// if (a === b) {
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+// return a;
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+// }
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+
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+// (b - a) ? c : c = a ;
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+
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+// return(Math.round( Math.random() * c ));
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+// }
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+// intRandom(2,15);
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+// intRandom(0,1);
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+// intRandom(10);
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+// break;
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+
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+// case "greetall": function greetAll (arg) {
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+// let str = `Hello`;
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+// for (let i of arguments) {
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+// str += ' ' + i + ',';
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+// }
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+// str = str.slice(0, -1);
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+// alert(str);
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+// }
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+// greetAll("Superman");
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+// greetAll("Superman", "SpiderMan");
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+// greetAll("Superman", "SpiderMan", "Captain Obvious");
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+// break;
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+
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+// case "sum": function sum (...arg) {
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+// let acum = 0;
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+// for (let value of arg) {
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+// acum += value;
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+// }
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+// return acum;
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+// }
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+// sum(1);
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+// sum(2);
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+// sum(10,20,40,100);
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+// break;
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+// };
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+
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+let setFunction ={
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+ "a": function (b){
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+ alert(b);
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+ },
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+ "cube": function cube(a) {
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+ return (a*a*a);
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+ },
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+ "avg2": function avg2 (a, b) {
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+ return ((a + b) / 2);
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+ },
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+ "sum3": function sum3 (a, b, c = 0) {
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+ return (a + b + c) ;
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+ },
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+ "intrandom": function intRandom (a, b) {
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+ let c = b - a;
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+ b ? b = a : a = 0;
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+
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+ if (a === b) {
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+ return a;
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+ }
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+
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+ (b - a) ? c : c = a ;
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+
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+ return(Math.round( Math.random() * c ));
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+ },
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+ "greetall": function greetAll (arg) {
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+ let str = `Hello`;
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+ for (let i of arguments) {
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+ str += ' ' + i + ',';
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+ }
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+ str = str.slice(0, -1);
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+ alert(str);
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+ },
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+ "sum": function sum (...arg) {
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+ let acum = 0;
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+ for (let value of arg) {
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+ acum += value;
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+ }
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+ return acum;
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+ }
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+};
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+
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+//setFunction.greetall("Вася, Петя")
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+
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