JavaScript - this key Word Tutorial Points (1)




















Objective: Teach a set of basic concepts in the JavaScript programming language.

Create a function as a variable (function expression) that prints ‘Hello World’ to console and another function that accepts a variable. The argument passed to the second the function should be executed as a function inside the body. Call the second function passing the first function as the argument.

<!DOCTYPE html> 
<html lang="en">
    <head>
       <meta charset="UTF-8">
     <meta http-equiv="XX-UA-Compatible" content="IE=edge">
     <meta name="viewport" content="width=device-width, initial-scale=1.0"> 
        <title>Tutorial point - Ex 01</title>


    </head>
<body>
 <script>
     
     /*Create a function as a variable (function expression) that 
        prints ‘Hello World’ to console */
    
     console.log("Hello World");

     /*Create a function as a variable (function expression) 
        that prints ‘Hello World’ to console and another function 
        that accepts a variable. */

     let i = "Hello";

     //to opent the console pree Fn + F12 

     console.logi + " SLIIT");

    /* The argument passed to the second function should be executed as a function
     inside the body. 
      Call the second function passing the first function as the argument.*/
     
    //--01--
    let printSecondWord = function(x){
        console.log("Hello" + x);
    }

    printSecondWord (" Kamal");

    //--02--
    let printMe = function(y){
       
        return "Hello " + y;
    }

    let display = function(y){
        document.write(`<h1>${y}</h1>`);
        
    }

    display(printMe ("Sirin"));

 </script>

</body>
    </html>


Check the output.


















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