belajarJavascript/functiongenerator.html at main · dhirarari/belajarJavascript · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        //contoh 1
        function * createName(){
            yield "Maulana"
            yield "Ahmad"
            yield "Fahreza"
        }
        document.writeln(createName())
        const names = createName()
        for(let nama of names){
            document.writeln(nama)
            console.log(nama);
        }

        //contoh 2
        //lazy generator : dia akan mengekskusi console log dulu di baris 29 kemudian masuk ke 26 kemudian kembali lagi ke looping
        //berbeda dengan array dimana dia akan menyelesaikan looping dahulu kemudian menyimpan dalam array kosong dan masuk ke baris 26
        function * buatGanjil(value){
        for(let i = 1; i<=value; i++){
            if ( i % 2 === 1 ){
                console.log(`yield ${i}`);
                yield i
            }

        }
        }

        const numbers = buatGanjil(100)
        for (const i of numbers){
            console.log(i);
        }

        function  buatGanjilArray(value){
        const array=[]
        for(let i = 1; i<=value; i++){
            if ( i % 2 === 1 ){
                console.log(`yield ${i}`);
                array.push(i)
            }

        }
        return array
        }

        const nomor = buatGanjilArray(100)
        for (const i of nomor){
            console.log(i);
        }

    </script>
</body>
</html>