HTML js realizes dynamic display of local time_javascript skills

Copy code The code is as follows:

< ;html>


setInterval("test()",1000);
function test ()
{
var a= new Date();
< ;/span>document.getElementById("time").innerHTML= a;
}

I don’t know what setInterval means, so Baidu Down.

Found this to mean:

The setInterval() method can call a function or calculate an expression according to the specified period (in milliseconds).
The setInterval() method will keep calling the function until clearInterval() is called or the window is closed. The ID value returned by setInterval() can be used as an argument to the clearInterval() method.

The method provided by w3school is:

Copy the code The code is as follows:

setInterval(code, millisec[,"lang"])

code is the function to be called, millisec is the period, and the time is calculated in milliseconds

Copy code The code is as follows:

Stop interval