[JS] setInterval() 반복 실행

프로그램에서 반복적으로 실행하는 Javascript 함수( setInterval )입니다.

[ 반복적으로 실행 -  ]

Syntax

setInterval(function,milliseconds,param1,param2,...)

예제

<button onclick="myFunction()">Try it</button>

<script>

function myFunction() {

    setInterval(function(){ alert("Hello"); }, 3000);

}

</script>

예제2

<button onclick="myFunction()">Try it</button>

<script>

var myVar;

function myFunction() {

    myVar = setInterval(alertFunc, 3000);

}

function alertFunc() {

  alert("Hello!");

}

</script>

[ 예제3 - 시계 clearInterval 함수 ]

<p id="demo"></p>

<button onclick="myStopFunction()">Stop time</button>

<script>

var myVar = setInterval(function(){ myTimer() }, 1000);

function myTimer() {

    var d = new Date();

    var t = d.toLocaleTimeString();

    document.getElementById("demo").innerHTML = t;

}

function myStopFunction() {

    clearInterval(myVar);

}

</script>

[참고]

setInterval : http://www.w3schools.com/jsref/met_win_setinterval.asp

clearInterval : http://www.w3schools.com/jsref/met_win_clearinterval.asp