[英]How to calculate total in a table using javascript
我试图对获得的标记进行计算,并希望将其显示在表格中。 如在javascript中一样,我所做的计算如下:
<script>
function kira1() {
var myeBook = document.getElementById('eBook').value;
var result = document.getElementById('result1');
var myResult = myeBook * 3;
result.value = myResult;
}
function kira2() {
var mybukuTeks = document.getElementById('bukuTeks').value;
var result = document.getElementById('result2');
var myResult = mybukuTeks * 3;
result.value = myResult;
}
function kira3() {
var mymodul = document.getElementById('modul').value;
var result = document.getElementById('result3');
var myResult = mymodul * 2;
result.value = myResult;
}
function kira4() {
var myjurnal = document.getElementById('jurnal').value;
var result = document.getElementById('result4');
var myResult = myjurnal * 2;
result.value = myResult;
}
function kira5() {
var myePembelajaran = document.getElementById('ePembelajaran').value;
var result = document.getElementById('result5');
var myResult = myePembelajaran * 1;
result.value = myResult;
}
function kira6() {
var myinovasi = document.getElementById('inovasi').value;
var result = document.getElementById('result6');
var myResult = myinovasi * 1;
result.value = myResult;
}
function kira7() {
var a = document.getElementById('result1').value;
var b = document.getElementById('result2').value;
var c = document.getElementById('result3').value;
var d = document.getElementById('result4').value;
var e = document.getElementById('result5').value;
var f = document.getElementById('result6').value;
var result = document.getElementById('jumlah_1A');
var myResult = a + b + c + d + e + f;
result.value = myResult;
}
</script>
但是,当我尝试运行它时,总数没有按我想要的方式显示。
总数应显示在“ Jumlah Skor 1A”上
尝试使用:
document.getElementById('jumlah_1A').innerHTML
i.e. document.getelementbyid('idname').innerHTML
根据我的理解,“ jumlah_1A”是一个div而不是一个Input框。 因此请使用.innerHTML而不是.value
W3school链接: http : //www.w3schools.com/jsref/prop_html_innerhtml.asp
var a = parseInt(document.getElementById('result1').value);
var b = parseInt(document.getElementById('result2').value);
var c = parseInt(document.getElementById('result3').value);
var d = parseInt(document.getElementById('result4').value);
var e = parseInt(document.getElementById('result5').value);
var f = parseInt(document.getElementById('result6').value);
将所有值转换为整数,然后再添加值。 如果jumlah_1A元素不是文本框,则执行
result.innerHTML = myResult;
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