JS Timers Flashcards
What is a “callback” function?
It is a function passed in through another function as an argument
Besides adding an event listener callback function to an element or the document, what is one way to delay the execution of a JavaScript function until some point in the future?
Use setTimeout( ) function
How can you set up a function to be called repeatedly without using a loop?
Use setInterval( ) function
What is the default time delay if you omit the delay parameter from setTimeout( ) or setInterval( )?
0 (zero)
What do setTimeout( ) and setInterval( ) return?
<b>setTimeout( ):</b> The returnedtimeoutIDis a positive integer value which identifies the timer created by the call tosetTimeout( )
<b>setInterval( ):</b> The returnedintervalIDis a numeric, non-zero value which identifies the timer created by the call tosetInterval( )