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setTimeout()andsetTimeInterval()are not part of the JavaScript language itself. They are browser APIs that sit on top of the JavaScript language.
Executes a specified block of code once after a set period of time.
\nsetTimeout takes the following parameters:
A function to run or a reference to a function defined elsewhere.
\nA number representing the time (in milliseconds) to wait before executing the code. If you specify a value of 0, the function runs as soon as possible.
\n\n\nNote: The callback is run as soon as possible, not immediately, because it has to wait for the stack on the main thread to be empty before it can run.
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Using an anonymous function;
\n// Anonymous function\nsetTimeout(function () {\n console.log(`Hello World!`)\n}, 2000)Using a named function:
\nsetTimeout(function greeting() {\n console.log(`Hello World!`)\n}, 2000)Below, we pass a reference to the greeting() function as the first argument of setTimeout.
function greeting() {\n console.log(`Hello World!`)\n}\n\nsetTimeout(greeting, 2000)Passing parameters to the function:
\nfunction greeting(name) {\n console.log(`Hello ${name}`)\n}\n\nsetTimeout(greeting, 2000, "hemanta")Executes a specified block of code at regular interval.
\nsetInterval() works in a very similar way to setTimeout( ) except the function you pass as the first parameter is executed repeatedly at the time interval specified by the second parameter.
function greeting(name) {\n console.log(`Hello ${name}`)\n}\n\nsetInterval(greeting, 2000, "hemanta")