How can I sum the values of multiple text inputs?
Currently the sum is not correct as it keeps on remembering and summing previous values that were in the input fields before.
I have the following code:
HTML:
<div class="form-group">
<legend>Risicopotentieel</legend>
<label for="email">Email address:</label>
<select class="selectpicker" id="selectpicker1">
<option value="1">text1</option>
<option value="2">text2</option>
<option value="3">text3</option>
<option value="4">text4</option>
</select>
<label for="email">Email address:</label>
<select class="selectpicker" id="selectpicker2">
<option value="1">text1</option>
<option value="2">text2</option>
<option value="3">text3</option>
<option value="4">text4</option>
</select>
<label for="email">Email address:</label>
<select class="selectpicker" id="selectpicker3">
<option value="1">text1</option>
<option value="2">text2</option>
<option value="3">text3</option>
<option value="4">text4</option>
</select>
</div>
<div class="form-group">
<legend>Score</legend>
<label for="email"> </label>
<input type="text" class="form-control" id="scorefield1">
<label for="email"> </label>
<input type="text" class="form-control" id="scorefield2">
<label for="email"> </label>
<input type="text" class="form-control" id="scorefield3">
<label for="email">Totaalscore</label>
<input type="text" class="form-control" name="riskpottotalscore" id="riskpottotalscore">
</div>
The jQuery code first copies the value of the selected option to an input field. This works fine. Thereafter, I want to calculate the sum and that is were it goes wrong. The variable totalPoints keeps remembering its scores, but I only want to calculate the sum over the values that are actually selected in score field 1, 2 and 3:
scorefieldrisk: function(){
totalPoints = 0;
for (var i = 1; i <= 7; i++) {
(function (i) {
$('select[id$="selectpicker' + i + '"]').on("change", function() {
document.getElementById('scorefield'+i).value = this.value;
if(!isNaN(this.value) && this.value.length!=0) {
totalPoints +=(parseInt(this.value));
document.getElementById('riskpottotalscore').value = totalPoints;
}
});
})(i);
}
},