Here is an example of ‘Hello World’ in Javascript.
console.log('Hello World');
In JavaScript, console.log() is a method that outputs data to the console. It’s commonly used for debugging and printing messages to the user.
So, in the “Hello, World!” example, we’re simply calling console.log() with the string “Hello, World!” as an argument. When the program runs, it outputs “Hello, World!” to the console.
Here are some variations of the “Hello, World!” program that you might encounter:
Example 1: Printing a variable
const message = "Hello, World!"; console.log(message);
In this example, we store the message “Hello, World!” in a variable called message, and then pass that variable as an argument to console.log(). The output will be the same as the original program: “Hello, World!”.
Example 2: Using template literals
const name = "John";
console.log(`Hello, ${name}!`);
Here, we use a feature of JavaScript called template literals to include a variable in our output string. The `${name}` syntax is called a template literal placeholder, and it will be replaced with the value of the name variable when the code is executed. The output of this program would be “Hello, John!”.
Example 3: Using alert()
alert("Hello, World!");
The `alert()` method is another way to output data to the user in JavaScript. It displays a popup message with the specified text. In this example, when the program runs, a popup window will appear with the message “Hello, World!”.
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