Little knowledge about regular function calls in JavaScript

SetTimeout ("test ()", 1000): executed once after a given time
SetInterval ("test ()", 1000)
The time unit is milliseconds.
SetTimeout can also be used for repeated execution after a fixed period of time:
Function test (){
// Your logic processing
SetTimeout ("test ()", 1000 );
}
The difference between the two methods is:
SetTimeout must be executed after your logic is executed at a fixed time. It is a single process and does not affect public data.
SetInterval is executed every fixed time, regardless of whether the previous method has been completed or not. It is a multi-process, and an error may occur when you modify the total data.

From Hurry's column