NodeJS - Call Nested Function from inside another nested Function-CodePudding

i have two nested functions, i want to call the second one inside the first one but i nodejs doesn't seem to recognize it.

function Main(){
  this.NestedA = function(){
    console.log('Hello from A')
  }

  this.NestedB = function(){
    console.log('Hello from B')

    /* How to call NestedA from here? */
    /**
     * I tried
     * NestedA()
     * this.NestedA()
     */
  }
}

CodePudding user response：

I think you should not use this. Try this way:

function Main(){
  const NestedA = function() {
    console.log('Hello from A')
  }

  const NestedB = function() {
    console.log('Hello from B');
    NestedA();
  }
}

CodePudding user response：

What is this? Really, you should not need this. Just change the declaration to normal function declarations, you might even use const assignment for functions like NestedC below.

function Main(){
  function NestedA(){
    console.log('Hello from A')
  }
  const NestedC= () => {
    console.log('Hello from A')
  }

  function NestedB(){
    console.log('Hello from B')
    NestedA();
  }
}

CodePudding user response：

You could also return the function that you want to call, and call it such as:

 function Main() {
  this.NestedA = function () {
    console.log("Hello from A");
  };

  return (this.NestedB = function () {
    console.log("Hello from B");
  });
}

Main2()(); //Hello from B

CodePudding user response：

No need to use this

Try this snippet

function Main(){
  NestedA = function(){
    console.log('Hello from A')
  }

  NestedB = function(){
    console.log('Hello from B')
     NestedA();
  }
NestedB();

}
Main();

Calling Main()
Main() call NestedB()
NestedB() call NestedA()