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setInterval clearInterval Javascript demo
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| <!DOCTYPE html> | |
| <html> | |
| <body> | |
| <p>Clock start on page load and stop after 5 seconds:</p> | |
| <p id="demo"></p> | |
| <p>Clock start on page load and stop when you click button:</p> | |
| <p id="demo1"></p> | |
| <button onclick="myStartFunction()">Restart second clock</button> | |
| <button onclick="myStopFunction()">Stop second clock</button> | |
| <script type="text/javascript" src="script.js"> | |
| </body> | |
| </html> |
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| var myVar = setInterval(function(){ myTimer(); }, 1000); | |
| var i = 0; | |
| function myTimer() { | |
| var d = new Date(); | |
| var t = d.toLocaleTimeString(); | |
| document.getElementById("demo").innerHTML = t; | |
| i++; | |
| if (i == 5) | |
| clearInterval(myVar); | |
| } | |
| var myVar1 = setInterval(function(){ myTimer1(); }, 1000); | |
| function myTimer1() { | |
| var d = new Date(); | |
| var t = d.toLocaleTimeString(); | |
| document.getElementById("demo1").innerHTML = t; | |
| } | |
| function myStopFunction() { | |
| clearInterval(myVar1); | |
| } | |
| function myStartFunction() { | |
| myVar1 = setInterval(function(){ myTimer1(); }, 1000); | |
| } |
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