js increment and decrement function for cart

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showing results for - "js increment and decrement function for cart"
Nicole
18 Jul 2019
1<div class="container">
2<input type="button" onclick="decrementValue()" value="-" />
3<input type="text" name="quantity" value="1" maxlength="2" max="10" size="1" id="number" />
4<input type="button" onclick="incrementValue()" value="+" />
5</div>
6
source
Pablo
21 Jul 2020
1<script type="text/javascript">
2function incrementValue()
3{
4    var value = parseInt(document.getElementById('number').value, 10);
5    value = isNaN(value) ? 0 : value;
6    if(value<10){
7        value++;
8            document.getElementById('number').value = value;
9    }
10}
11function decrementValue()
12{
13    var value = parseInt(document.getElementById('number').value, 10);
14    value = isNaN(value) ? 0 : value;
15    if(value>1){
16        value--;
17            document.getElementById('number').value = value;
18    }
19
20}
21</script>
22
source
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