Generator Function

Example 1 : Create a Generator

<script>     
    function *Student (){
        yield "Roll 1";
        yield "Roll 2";
        yield "Roll 3";
        yield "Roll 4";
        yield "Roll 5";
      }
    let x =   Student();
      x.next()
      x.next()
    console.log(x.next().value)
</script>
 

Example 2 : Access Generator value by loop

<script>     
function *Student (){
      yield "Roll 1";
      yield "Roll 2";
      yield "Roll 3";
      yield "Roll 4";
      yield "Roll 5";
      yield "Roll 6";
    }
  let x =   Student();
   for(y of x){
        console.log(y)  
   }
</script>
 

Example 3 : Create Generator with loop

<script>     
  function *Student (){
        let num = 200;
        while(true){
            yield num += 10;
        }
    }
  let x =   Student();
    console.log(x.next())
    console.log(x.next())
    console.log(x.next())
</script>
 

Example 4 : Create Generator using string and array

<script>     
  function *Student (){
        yield "Hello";
        yield ["Ram", "Shyam", "Suresh"]
      }
  let x =   Student();
  console.log(x.next())
  console.log(x.next())
</script>
 

Example 5 : Access Generator Array Value

<script>     
  function *Student (){
          yield *["Ram", "Shyam", "Suresh"]
        }
    let x =   Student();
    console.log(x.next())
    console.log(x.next())
</script>
 

Example 6 : Create Generator with user value (Generator with return value)

<script>     
    function *Student (){
      let myvalue = yield;
      console.log(myvalue)
    }
    let x =   Student();
    x.next();
    x.next("Javascript")
</script>
 

Example 7 : Access Generator value with spread operator

<script>     
  function *Student (){
    yield *["Ram", "suresh", "Gagan"]
  }
  let x = Student();
 console.log(x.next())
 //console.log(x.next())
 console.log([...x])
</script>