I need help for some javascript code. I need to make it so that every 7 seconds, "i" will increase by 1. So that I will get " 'i' people have died from hunger since you entered this web page." Eg.
Start: 0 people have died from hunger since you entered this web page
After 7 seconds: 1 people have died from hunger since you entered this web page.
After another 7 seconds: 2 people have died from hunger since you entered this web page.
Please help!. This is what I have been doing so far. I don't really know what I am doing actually. It would be good if a If statement could be added such that for the case of i=1, "people have" will be changed to "person has" - <html>
-
<body>
-
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<script type="text/javascript">
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i=0
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setInterval ("i++", 7000 );
-
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document.write(i);
-
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function updateNumb(){
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$('#numb').load();
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}
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setInterval( "updateNumb()", 7000 );
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</script>
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<p id="#numb">i</p>
-
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</body>
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</html>
Thanks in advance!
17  1595  Dormilich 8,658
Recognized Expert Moderator Expert
ok, document.write( ) must not be used.
you have one setInterval() too many (you only need one process to repeat)
you didn’t include jQuery/prototype (whatever framework you try to use).
an id must not start with a hash (#), that’s a "reserved keyword" in HTML.
Ok...Lets change it a bit - <html>
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<body>
-
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<script type="text/javascript">
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i=0
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setInterval ("i++", 7000 );
-
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</script>
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<p id="numb">i</p>
-
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</body>
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</html>
So I have to change the "i" at #numb so that it is a variable and then I have to make it change every 7 seconds.
Dormilich 8,658
Recognized Expert Moderator Expert
well, wrong setInterval() deleted, however, the logic is correcter this time. what you need to do as next step is getting the <p> to update (try that first without setInterval())
personal stickie: - $(#numb).update = function () {
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setTimeout(this.update.bind(this))
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}
vs. - setInterval(update.bind($(#numb)))
- <html>
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<body>
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<p id="numb"></p>
-
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<script type="text/javascript">
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var i = 0;
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setInterval (function(){
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document.getElementById('numb').innerHTML = i;
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i++;
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}, 7000);
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</script>
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</body>
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</html>
Dormilich 8,658
Recognized Expert Moderator Expert
@agbb0cg: out of interest, can you code that also without using globals?
@Dormilich
maybe something like this?: - <html>
-
<body>
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<p id="numb">0</p>
-
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<script type="text/javascript">
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setInterval (function(){
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var numObj = document.getElementById('numb')
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numObj.innerHTML = parseFloat(numObj.innerHTML) + 1;
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}, 7000);
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</script>
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</body>
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</html>
-
or you could have
<p id="numb"></p>
and
numObj.innerHTM L = !numObj.innerHT ML ? 0 : parseFloat(numO bj.innerHTML) + 1;
but in this case, you would have a blank space the first 7 secs
Dormilich 8,658
Recognized Expert Moderator Expert
I came up with this - (function () {
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var numb = document.getElementById("numb");
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function update() {
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this.innerHTML = parseFloat(this.innerHTML) + 1;
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}
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setInterval(update.bind(numb), 7000);
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})();
@agbb0cg Thanks a lot. Yours worked! But I still have to add " people have died of hunger since you entered this webpage." after the "0/1/2 etc." Eg. 3 people have died of hunger since you entered this webpage. I need to make it such that there are no breaks. If possible, please try to add a If statement such that if it is 1, then it will say "person has" instead of "people have", but it is not that necessary.
@Dormilich I don't understand your last reply. Please explain how it can be used. Thanks a lot.
@bbkc22113 - <html>
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<body>
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<p>
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<span id="numb"></span>
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<span id="txt"></span>
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</p>
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<script type="text/javascript">
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setInterval (function(){
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var numObj = document.getElementById('numb');
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var txtObj = document.getElementById('txt');
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var currentNum = parseFloat(numObj.innerHTML);
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numObj.innerHTML = currentNum + 1;
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var numTxt = currentNum == 1 ? ' person has' : ' people have';
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numTxt += ' died of hunger since you entered this webpage.';
-
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txtObj.innerHTML = numTxt;
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i++;
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}, 7000);
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</script>
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</body>
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</html>
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