[英]How to calculate total in a table using javascript
我試圖對獲得的標記進行計算,並希望將其顯示在表格中。 如在javascript中一樣,我所做的計算如下:
<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,當我嘗試運行它時,總數沒有按我想要的方式顯示。
總數應顯示在“ Jumlah Skor 1A”上
嘗試使用:
document.getElementById('jumlah_1A').innerHTML
i.e. document.getelementbyid('idname').innerHTML
根據我的理解,“ jumlah_1A”是一個div而不是一個Input框。 因此請使用.innerHTML而不是.value
W3school鏈接: 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);
將所有值轉換為整數,然后再添加值。 如果jumlah_1A元素不是文本框,則執行
result.innerHTML = myResult;
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