Javascript code doesn't work. Why?
Question
The values of the buttons should change when you click on them
<html>
<head>
</head>
<body>
<input type = "button" value ="1" onclick="click(this);">
<input type = "button" value ="0" onclick="click(this);">
<input type = "button" value ="1" onclick="click(this);">
<script>
function click(objekt) {
if(objekt.value == 1)
objekt.value = 0;
else
objekt.value = 1;
}
</script>
</body>
</html>
Please explain how to get the value on onclick event?
3 answers
solution1
3 ACCPTED 2017-07-08 17:39:33
Name of your function is the culprit here. you can not name your function name "click" , it's restricted . Change your function name, it will work.
function click123(objekt) { if (objekt.value == 1) objekt.value = 0; else objekt.value = 1; }
<input type="button" value="1" onclick="click123(this);"> <input type="button" value="0" onclick="click123(this);"> <input type="button" value="1" onclick="click123(this);">
solution2
0 2017-07-08 17:36:49
Try removing the spaces on
<input type = "button" value ="1" onclick="click(this);">
<input type = "button" value ="0" onclick="click(this);">
<input type = "button" value ="1" onclick="click(this);">
to
<input type="button" value="1" onclick="click(this);">
<input type="button" value="0" onclick="click(this);">
<input type="button" value="1" onclick="click(this);">
Also, what are the values when you change them? Try printing them out. That might help you find what you're looking for. Does it actually change to 1 or 0? Also, I know you don't need curly brackets on if statements if there is only one statement but try with curly brackets.
solution3
0 2017-07-08 17:43:59
Here you go with the solution https://jsfiddle.net/o0zxqq0u/
clickFunc = function(objekt) {
if(objekt.value == 1)
objekt.value = 0;
else
objekt.value = 1;
}
**HTML**
<input type="button" value ="1" onclick="clickFunc(this);" />
<input type="button" value ="0" onclick="clickFunc(this);" />
<input type="button" value ="1" onclick="clickFunc(this);" />
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