Scroll bars and marquee lights

1. Other functions

obj = setinterval (' function name ', number of milliseconds);  Clearinterval (obj); ---> This is equivalent to a timer;

obj = SetTimeout (' function name ', number of milliseconds); Cleartimeout (obj);

2. Scroll bar

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Run results
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3. Happy Lantern
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Run results
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4. Summary
(1), num = setinterval (' event function ', MS), this function (setinterval) is a timer, which executes the function once every few hours;
Clearinterval (NUM) is the terminating execution timer function;
(2), num = setTimeout (' event function ', milliseconds), this function executes only once and is not executed;
Cleartimeout (num), terminating the timer execution;

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Scroll bars and marquee lights