1.

Explain Prototype chain in JavaScript using Object.create()?

Answer»

The setTimeout() function is used in JavaScript to delay a function call.

For example, if you want to delay the function call by 5 seconds, then you can easily achieve this using the setTimeout() function.

The following is the syntax:

setTimeout(func_name, milliseconds, arg1, ARG2, ...)

Here,

  • func_name: Name of the function to be executed.
  • milliseconds: Number of milliseconds.
  • arg1, arg2 Arguments PASSED to the function.

The following is an example:

Let’s say we want the function cal to delay by 3 seconds, therefore we will implement the setTimeout( with a parameter as 3000 milliseconds (i.e. 3 seconds):

function display() {     setTimeout(function(){ document.write("Displaying after 3 seconds..."); }, 3000); }

The example: 

<!DOCTYPE html> <html> <BODY> <button onclick="display()">Click</button> <SCRIPT> function display() {     setTimeout(function(){ document.write("Displaying after 3 seconds..."); }, 3000); } </script> <p>Wait for 3 seconds after clicking the button</p> </body> </html>

The output displays a button: 

After 3 seconds, the following would be visible since we delayed the execution:


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