setTimeout: Quotes and Parentheses Difference

When using the setTimeout function in JavaScript, it is important to understand the difference between using quotes and parentheses.

When passing a function as a parameter to setTimeout, it is common to use quotes around the function name, like so:

setTimeout("myFunction()", 1000);

However, it is actually recommended to use parentheses instead of quotes, like this:

setTimeout(myFunction, 1000);

Using quotes can cause issues with scoping and can make it more difficult to pass arguments to the function. Using parentheses ensures that the function is properly referenced in the setTimeout call and avoids any potential issues with scoping.

In addition, using parentheses allows for the passing of arguments to the function, like this:

setTimeout(myFunction(argument1, argument2), 1000);

In conclusion, it is best practice to use parentheses when passing a function as a parameter to setTimeout in JavaScript. This ensures proper scoping and allows for the passing of arguments to the function.