var arr = [];
arr[0] = 1;
arr[1] = 2;
var arr2 = new Array(2);
arr2[0] = 1;
arr2[1] = 2;
var arr3 = new Array(1,2);
document.write(arr1.toString());
document.write(arr.join(" "));
var arr = [];
for(var i = 0; i < 10; ++i){
arr[i] = i;
}
var arr2 = arr.slice(1,3);
document.write(arr.toString()+"<br>");
document.write(arr2.toString()+"<br>");
var arr = new Array(1,2,3);
var arr2 = new Array(4,5,6);
document.write(arr2.concat(arr));
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<script type="text/javascript">
var timeid;
var flag = 0; // 0이면 안돔 1이면 도는 중
function show(){
var now = new Date();
var hour = now.getHours();
var minute = now.getMinutes();
var seconds = now.getSeconds();
var timeValue = hour + "시" + minute + "분" + seconds + "초";
document.fmt.display.value = timeValue;
timeid = setTimeout("show()",1000);
}
function startClock(){
if(0 != flag)
return;
flag = 1;
show();
console.log("startClock timeid:"+timeid);
}
function stopClock(){
if(1 != flag)
return;
flag = 0;
console.log("end timeid:"+timeid);
clearTimeout(timeid);
}
</script>
</head>
<body>
<form name="fmt">
<input type="text" name="display">
<input type="button" name="start" value="시작" onclick="startClock()">
<input type="button" name="stop" value="종료" onclick="stopClock()">
</form>
</body>
</html>