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+<!DOCTYPE html>
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+<html>
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+<head>
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+ <meta charset="utf-8">
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+ <title></title>
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+</head>
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+<body>
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+
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+ <script>
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+
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+//------a
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+ function a(word){
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+ alert(word);
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+ }
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+
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+ function sSample(){
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+ a('Hello');
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+ }
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+
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+
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+//------cube
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+ function cube(x){
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+ alert(x*x*x);
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+ }
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+
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+ function cubeSample(){
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+ cube(3);
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+ }
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+
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+
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+//------avg2
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+ function avg2(a,b){
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+ alert((a+b)/2);
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+ }
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+
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+ function avg2Sample(){
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+ avg2(1,2);
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+ }
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+
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+//------sum3
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+ function sum3(a=0,b=0,c=0){
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+ alert(a+b+c);
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+ }
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+
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+ function sum3Sample(){
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+ sum(1,2)
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+ }
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+
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+//------intRandom
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+ function intRandom(a=0,b=0){
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+ let rand=a+Math.random()*(b+1-a);
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+ console.log(Math.floor(rand));
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+ }
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+
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+ function intRandomSample(){
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+ intRandom(10)
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+ }
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+
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+//------greetAll
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+ function greetAll(...who){
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+ /*for(let i=0;i<arguments.length;i++){
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+ alert('Hello,'+arguments[i]);
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+ }*/
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+ alert('Hello,'+who);
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+ }
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+
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+ function greetAllSample(){
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+ greetAll('Superman','Spider-man');
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+ }
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+
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+
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+//------sum
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+ function sum(){
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+ let res=0;
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+ for(let i=0;i<arguments.length;i++){
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+ res+=arguments[i];
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+ }
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+ alert(res);
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+ }
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+
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+ function sumSample(){
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+ alert(sum(1,2,3,4,5));
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+ }
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+
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+
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+//------Union
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+ /*let sample=prompt('Введите название задания','');
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+ switch(sample.toLowerCase()){
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+ case'a':aSample();
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+ break;
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+ case 'cube':cubeSample();
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+ break;
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+ case 'avg2':avg2Sample();
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+ break;
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+ case 'sum3':sum3Sample();
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+ break;
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+ case 'intrandom':intRandom();
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+ break;
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+ case 'greetall':greetAllSample();
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+ break;
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+ case 'sum':sumSample();
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+ break;
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+ } */
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+
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+//------Union declarative
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+ let obj={
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+ a:function(word=prompt('Введите слово','')){
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+ a(word);
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+ },
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+ cube:function(num=+prompt('Введите число','')){
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+ cube(num);
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+ },
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+ avg2:function(num1=+prompt('Введите первое число',''),num2=+prompt('Введите второе число','')){
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+ avg2(num1,num2);
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+ },
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+ sum3:function sum3Sample(num1=+prompt('Введите первое число',''),num2=+prompt('Введите второе число',''),num3=+prompt('Введите третье число','')){
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+ sum(num1,num2,num3);
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+ },
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+ intrandom:function(num1=+prompt('min',''),num2=+prompt('max','')){
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+ intRandom(num1,num2);
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+ },
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+ greetall:function(who=prompt('Введите имя (имена)')){
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+ greetAll(who);
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+ }
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+ };
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+
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+ let key=prompt('Введите название функции','');
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+
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+ for(let item in obj){
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+ if(item.toLowerCase()==key.toLowerCase()){
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+ obj[item]();
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+ }
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+ }
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+
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+
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+
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+
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+
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+ </script>
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+
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+</body>
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+</html>
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