how to get value from select without refresh? - javascript

I made a CGPA-SGPA calculator and I cannot get the value with refresh.
When I refresh and check the value it get feed
but not getting value without refresh.
var credit_1001 = document.querySelector('#credit_1001')
var grade_1001 = document.querySelector('#grade_1001')
var credit_1002 = document.querySelector('#credit_1002')
var grade_1002 = document.querySelector('#grade_1002')
var credit_1003 = document.querySelector('#credit_1003')
var grade_1003 = document.querySelector('#grade_1003')
var credit_1004 = document.querySelector('#credit_1004')
var grade_1004 = document.querySelector('#grade_1004')
var credit_1008 = document.querySelector('#credit_1008')
var grade_1008 = document.querySelector('#grade_1008')
var credit_1009 = document.querySelector('#credit_1009')
var grade_1009 = document.querySelector('#grade_1009')
//btn and result S1
var btn_check = document.querySelector('#check_s1')
var result_s1 = document.querySelector('#result_s1')
//btn click S1
var total_s1_credit = parseInt(credit_1001.value) + parseInt(credit_1002.value) + parseInt(credit_1003.value) + parseInt(credit_1004.value) + parseInt(credit_1008.value) + parseInt(credit_1009.value)
var got_s1_marks = parseInt(credit_1001.value) * parseInt(grade_1001.value) + parseInt(credit_1002.value) * parseInt(grade_1002.value) + parseInt(credit_1003.value) * parseInt(grade_1003.value) + parseInt(credit_1004.value) * parseInt(grade_1004.value) + parseInt(credit_1008.value) * parseInt(grade_1008.value) + parseInt(credit_1009.value) * parseInt(grade_1009.value)
btn_check.addEventListener('click', () => {
result_s1.innerText = " S1 SGPA " + got_s1_marks / total_s1_credit
console.log("S1 Total Credit = " + total_s1_credit)
console.log("S1 Got Marks = " + got_s1_marks)
console.log("S1 SGPA = " + result_s1.innerText)
})


You need to get the values for your calculation inside of the click handler, right now you get them before the click, and then use (the old values) when the click happens
btn_check.addEventListener('click', () => {
//btn click S1
var total_s1_credit = parseInt(credit_1001.value) + parseInt(credit_1002.value) + parseInt(credit_1003.value) + parseInt(credit_1004.value) + parseInt(credit_1008.value) + parseInt(credit_1009.value)
var got_s1_marks = parseInt(credit_1001.value) * parseInt(grade_1001.value) + parseInt(credit_1002.value) * parseInt(grade_1002.value) + parseInt(credit_1003.value) * parseInt(grade_1003.value) + parseInt(credit_1004.value) * parseInt(grade_1004.value) + parseInt(credit_1008.value) * parseInt(grade_1008.value) + parseInt(credit_1009.value) * parseInt(grade_1009.value)
result_s1.innerText = " S1 SGPA " + got_s1_marks / total_s1_credit
console.log("S1 Total Credit = " + total_s1_credit)
console.log("S1 Got Marks = " + got_s1_marks)
console.log("S1 SGPA = " + result_s1.innerText)
})

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How can I rewrite innerHTML everytime function is called javascript

function he() {
var x = Math.floor((Math.random() * 100) + 1);
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var vhp = villains - x;
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vok();
}
function vok() {
var y = Math.floor((Math.random() * 100) + 1);
document.getElementById("res3").innerHTML = "<br/>Villains have dealt " + y + " damage on Heroes.";
var hhp = hero - y;
document.getElementById("res4").innerHTML = "<br/>Heroes have " + hhp + " hp left.";
he();
}
Here is the above code I made function he() is called when a button is clicked and vok function is called after execution of he() function but it's not going good currently i want to overwrite the innerHTML every time the function is runned how am I supposed to do so?

How to align POS Printing using Javascript?

I have been trying to print a particular div with ng-repeat using a pos bluetooth printer using Javascript.
function sendToQuickPrinterChrome(){
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var dt = document.getElementById("Date").textContent;
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var order = document.getElementById("order").textContent;
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jQuery: Value of an input doesn't save in a variable

I can't save what I have in my input in a variable. It saves as a blank space or if it's an integer: 0
This is my code:
function attachKeyupEventDescuento(inputElement, i) {
var cantidad = $('#txt_compras_cantidad' + i).val()
var costo = $('#txt_compras_costoUni' + i).val()
total = (cantidad * costo)
$(inputElement).keyup(function() {
console.log(total)
if (inputElement.val() !== '') {
var descuento = inputElement.val()
var descuentoTotal = ($('#txt_compras_cantidad' + i).val() * $('#txt_compras_costoUni' + i).val()) - ($('#txt_compras_cantidad' + i).val() * $('#txt_compras_costoUni' + i).val() * (descuento / 100))
$('#spn_compras_total' + i).text(descuentoTotal.toFixed(2))
sumarprecioFinal()
} else {
$('#spn_compras_total' + i).text(($('#txt_compras_cantidad' + i).val() * $('#txt_compras_costoUni' + i).val()).toFixed(2))
}
})
}
Let me explain the code:
var cantidad = $('#txt_compras_cantidad' + i).val()
var costo = $('#txt_compras_costoUni' + i).val()
If I save them in those variables, I get a blank space, but if I use them without saving them in a variable, they work perfectly. Why does it happen?
This function is called from a button that created a new row in my table. The inputelement is the current input on which to attach the keyup event.

Please find the updated code
function attachKeyupEventDescuento(inputElement, i) {
var cantidad = parseInt($('#txt_compras_cantidad' + i).val());
var costo = parseInt($('#txt_compras_costoUni' + i).val());
var total = (cantidad * costo)
$(inputElement).keyup(function() {
console.log(total)
if ($(inputElement).val() !== '') {
var descuento = parseInt($(inputElement).val());
var descuentoTotal = (cantidad * costo) - (cantidad * costo * (descuento / 100));
$('#spn_compras_total' + i).text(descuentoTotal.toFixed(2))
sumarprecioFinal()
} else {
$('#spn_compras_total' + i).text((cantidad * costo).toFixed(2))
}
})
}
When you get value from an input, it's always a string. Try parsing the value of an input.

cant figure out how to get the return showing .toFixed(2) amount without error

The script works great for adding items on invoice however i cant figure how to convert the data using .toFixed(2) to show $10.00 instead of 10. I get an error every time I try to add .toFixed(2) . thank you
<script type="text/javascript">
function myFunction() {
var answer = document.getElementById('total');
var x = document.getElementById('itemprice1');
var y = document.getElementById('itemprice2');
var z = document.getElementById('itemprice3');
var w = document.getElementById('itemprice4');
var taxt = document.getElementById('taxtot');
var thetot = document.getElementById('thetot');
// parseFloat converts to values, otherwise you'll concatenate the strings.
answer.value = parseFloat("0" + x.value) + parseFloat("0" + y.value) + parseFloat("0" + z.value) + parseFloat("0" + w.value);
}
function myFunction1() {
var answer = document.getElementById('total');
var taxt = document.getElementById('taxtot');
var thetot = document.getElementById('thetot');
thetot.value = parseFloat("0" + answer.value) + parseFloat("0" + taxt.value);
if (thetot > "0") {
{
//function myFunction2()
var taxt = document.getElementById('taxtot');
var tx1 = document.getElementById('tax1');
var tx2 = document.getElementById('tax2');
var tx3 = document.getElementById('tax3');
var tx4 = document.getElementById('tax4');
var x = document.getElementById('itemprice1');
var y = document.getElementById('itemprice2');
var z = document.getElementById('itemprice3');
var w = document.getElementById('itemprice4');
var answer = document.getElementById('total');
taxt.value = parseFloat("0" + tx1.value) * ("0" + x.value) + parseFloat("0" + tx2.value) * ("0" + y.value) + parseFloat("0" + tx3.value) * ("0" + z.value) + parseFloat("0" + tx4.value) * ("0" + w.value);
}
}
}
</script>

Presumably your controls are in a form, so you can reference them simply using their name in the form. You can also convert strings to numbers using unary +:
function myFunction(formId) {
var f = document.getElementById(formId);
var answer = f.total;
var x = +f.itemprice1.value;
var y = +f.itemprice2.value;
var z = +f.itemprice3.value;
var w = +f.itemprice4.value;
var taxt = f.taxtot;
var thetot = f.thetot;
// Presumably here is where you want to use toFixed
answer.value = '$' + (x + y + z + w).toFixed(2);
}

function to_dollar_string(amount)
{
return "$" + amount.toFixed(2);
}
to_dollar_string(10);
=> "$10.00"
to_dollar_string(10.567);
=> "$10.57"

HTML button action not working in Safari [closed]

Closed. This question needs details or clarity. It is not currently accepting answers.
Want to improve this question? Add details and clarify the problem by editing this post.
Closed 9 years ago.
Improve this question
I'm running a web page in Safar, however; I notice that when I press the save button the event doesn't fire. It works fine in IE though. I've researched the issue, and found that it's not due to a missing value attribute or single/double quote specifics. Any help would be appreciated.
<input type='button' name='Save' id='saveCut' value='Save Cut' class=button onClick=\"Puma.saveTheCut()\">
JS function
Puma.saveTheCut = function () {
var offerId = inStoreCut.cutOfferFields[0];
var merchId = inStoreCut.cutOfferFields[1];
var adId = inStoreCut.cutOfferFields[2];
var eventID = inStoreCut.cutOfferFields[3];
var adNum = inStoreCut.cutOfferFields[4];
var cutID = inStoreCut.cutOfferFields[5];
var merchDescription = parent.main.document.getElementById('merchDescription').value;
var UPC = parent.main.document.getElementById('merchUPC').value;
var nrfSampleColorObj = parent.main.document.getElementById('itemColor');
var nrfSampleColor = nrfSampleColorObj.options[nrfSampleColorObj.selectedIndex].value;
var nrfsampleSubColorObj = parent.main.document.getElementById('itemChildColor');
var colorCodeStr = nrfsampleSubColorObj.options[nrfsampleSubColorObj.selectedIndex].value;
var nrfsampleSubColor = colorCodeStr.substring(0, 3);
var customer_Facing_Color = parent.main.document.getElementById('merchCustomerFacingColor').value;
var division = parent.main.document.getElementById('merchFob').value;
var deptNum = parent.main.document.getElementById('merchDept0~0').value;
var vendorNum = parent.main.document.getElementById('merchVendorNum0~0').value;
var pID = parent.main.document.getElementById('pID0~0').value;
var regPrice = parent.main.document.getElementById('regPrice').value;
var sampleSize = parent.main.document.getElementById('itemSize').value;
var itemQty = parent.main.document.getElementById('itemQty').value;
if (parent.main.document.getElementById('chkMerchSet').checked) {
var set = "1";
}
else {
var set = "0";
}
var sampleTypeObj = parent.main.document.getElementById("itemType");
var sampleType = sampleTypeObj.options[sampleTypeObj.selectedIndex].text;
var merchColorCorrObj = parent.main.document.getElementById("merchColorCorr");
var colorCorr = merchColorCorrObj.options[merchColorCorrObj.selectedIndex].value;
var merchSwatchObj = parent.main.document.getElementById("merchSwatch");
var Swatch = merchSwatchObj.options[merchSwatchObj.selectedIndex].value;
var pantoneColor = parent.main.document.getElementById('merchPantone').value;
var photoStylingDetails = parent.main.document.getElementById('merchPhotoStylingDetails').value;
var mCOMSampleId = parent.main.document.getElementById('mCOMSample').value;
var deptName = parent.main.document.getElementById('merchDeptName0~0').innerHTML;
var vendorName = Puma.decoder(parent.main.document.getElementById('merchVendorName0~0').innerHTML);
if (parent.main.document.getElementById('pidStatus0~0').value == "NOT IN PD") {
var pidStatus = "0";
}
else {
var pidStatus = "1";
}
var pidDescription = parent.main.document.getElementById('pidDescription').value;
var webId = parent.main.document.getElementById('webID0~0').innerHTML;
var vStyle = parent.main.document.getElementById('merchVStyle').value;
var markStyle = parent.main.document.getElementById('merchMarkStyle').value;
var subClass = parent.main.document.getElementById('Subclass').value;
// var productDescription = parent.main.document.getElementById('productDescription').value;
var docLineitemNum = parent.main.document.getElementById('merchDoc').value;
var merchTurnInStatusObj = parent.main.document.getElementById("merchTurnInStatus");
var turnInStatus = merchTurnInStatusObj.options[merchTurnInStatusObj.selectedIndex].text;
var reason = parent.main.document.getElementById('merchReason').value;
var merchCountryOriginObj = parent.main.document.getElementById("countryOfOrigin");
var countryOfOrigin = merchCountryOriginObj.options[merchCountryOriginObj.selectedIndex].value;
var importedCountry = parent.main.document.getElementById("importedCountries").value;
//var importedCountry = merchImportedCountryObj.options[merchImportedCountryObj.selectedIndex].text;
var fabricContent = parent.main.document.getElementById("fabricContent").value;
var careInstructions = parent.main.document.getElementById("careInstructions").value;
var offerDescription = parent.main.document.getElementById("offerDescription").value;
var onlyAtMacysObj = parent.main.document.getElementById("onlyAtMacys");
var onlyAtMacysValue = parseInt(onlyAtMacysObj.options[onlyAtMacysObj.selectedIndex].value, 10);
var onlyAtMacys = onlyAtMacysValue;
var legalOneObj = parent.main.document.getElementById("legalOne");
var legalOne = legalOneObj.options[legalOneObj.selectedIndex].value;
var legalOneExplain = parent.main.document.getElementById("explainLegalOne").value;
var legalTwoObj = parent.main.document.getElementById("legalTwo");
var legalTwo = legalTwoObj.options[legalTwoObj.selectedIndex].value;
var legalTwoExplain = parent.main.document.getElementById("explainLegalTwo").value;
var legalThreeObj = parent.main.document.getElementById("legalThree");
var legalThree = legalThreeObj.options[legalThreeObj.selectedIndex].value;
var legalThreeExplain = parent.main.document.getElementById("explainLegalThree").value;
var legalFourObj = parent.main.document.getElementById("legalFour");
var legalFour = legalFourObj.options[legalFourObj.selectedIndex].value;
var fiftyObj = parent.main.document.getElementById("overFifty");
var fifty = fiftyObj.options[fiftyObj.selectedIndex].value;
var userId = parent.botnav.uinfo.userID;
if (Puma.btiRequiredFieldIsValidated() == true) {
if (inStoreCut.existingRecord == false) {
sql = "action=saveMerchFormForCut&cutID=" + cutID +
//sql = "action=updateMerchFormForCut&cutID=" + cutID +
"&merchDescription=" + encodeURIComponent(merchDescription) +
"&UPC=" + UPC +
"&nrfSampleColor=" + nrfSampleColor +
"&nrfSampleSubColor=" + nrfsampleSubColor +
"&division=" + encodeURIComponent(division) +
"&deptNum=" + deptNum +
"&merchVendorNum=" + vendorNum +
"&pID=" + pID +
"&Customer_Facing_Color=" + encodeURIComponent(customer_Facing_Color) +
"&regPrice=" + regPrice +
"&sampleSize=" + encodeURIComponent(sampleSize) +
"&itemQty=" + itemQty +
"&set=" + set +
"&sampleType=" + sampleType +
"&colorCorr=" + colorCorr +
"&Swatch=" + Swatch +
"&pantoneColor=" + encodeURIComponent(pantoneColor) +
"&photoStylingDetails=" + encodeURIComponent(photoStylingDetails) +
"&mCOMSampleId=" + mCOMSampleId +
"&deptName=" + deptName +
"&vendorName=" + encodeURIComponent(vendorName) +
"&pidStatus=" + pidStatus +
"&pidDescription=" + pidDescription +
"&webId=" + webId +
"&vStyle=" + vStyle +
"&markStyle=" + markStyle +
"&subClass=" + subClass +
"&docLineItemNum=" + docLineitemNum +
"&merchTurnInStatus=" + turnInStatus +
"&reason=" + encodeURIComponent(reason) +
"&countryOfOrigin=" + countryOfOrigin +
"&importedCountry=" + importedCountry +
"&fabricContent=" + encodeURIComponent(fabricContent) +
"&careInstructions=" + encodeURIComponent(careInstructions) +
"&offerDescription=" + encodeURIComponent(offerDescription) +
"&onlyAtMacys=" + onlyAtMacys +
"&legalOne=" + legalOne +
"&legalOneExplain=" + legalOneExplain +
"&legalTwo=" + legalTwo +
"&legalTwoExplain=" + legalTwoExplain +
"&legalThree=" + legalThree +
"&legalThreeExplain=" + legalThree +
"&legalFour=" + legalFour +
"&fifty=" + fifty +
"&createdBy=" + userId
var ajaxMaster = new AjaxMaster(sql, "Puma.saveMerchFormForCutData(data)", "", "btiDispatcher.aspx");
sql = "action=updateMerchFormForCut&sql=" + encodeURIComponent(msql);
objAjaxAd.main_flag = "updateMerchFormForCut";
objAjaxAd.SendQuery(sql);
// "[t0].[signedByUserID]," +
// "[t0].[signedStatus]," +
//"[t0].[dateSigned]," +
//"[t0].[signedLastByUserID]," +
//"[t0].[dateLastSigned1]," +
//"[t0].[signedLastStatus]" +
// var ajaxMaster = new AjaxMaster(sql, "Puma.updateMerchFormForCutData(data)", "", "puma_core.aspx");
}
else {
sql = "action=updateMerchFormForCut&cutID=" + cutID +
"&offerId" + offerId +
"&merchId" + merchId +
"&adID" + adId +
"&eventID" + eventID +
"&adNum" + adNum +
"&merchDescription=" + encodeURIComponent(merchDescription) +
"&UPC=" + UPC +
"&nrfSampleColor=" + nrfSampleColor +
"&nrfSampleSubColor=" + nrfsampleSubColor +
"&division=" + encodeURIComponent(division) +
"&deptNum=" + deptNum +
"&merchVendorNum=" + vendorNum +
"&pID=" + pID +
"&Customer_Facing_Color=" + encodeURIComponent(customer_Facing_Color) +
"&regPrice=" + regPrice +
"&sampleSize=" + encodeURIComponent(sampleSize) +
"&itemQty=" + itemQty +
"&set=" + set +
"&sampleType=" + sampleType +
"&colorCorr=" + colorCorr +
"&Swatch=" + Swatch +
"&pantoneColor=" + encodeURIComponent(pantoneColor) +
"&photoStylingDetails=" + encodeURIComponent(photoStylingDetails) +
"&mCOMSampleId=" + mCOMSampleId +
"&deptName=" + deptName +
"&vendorName=" + encodeURIComponent(vendorName) +
"&pidStatus=" + pidStatus +
"&pidDescription=" + pidDescription +
"&webId=" + webId +
"&vStyle=" + vStyle +
"&markStyle=" + markStyle +
"&subClass=" + subClass +
"&docLineItemNum=" + docLineitemNum +
"&merchTurnInStatus=" + turnInStatus +
"&reason=" + encodeURIComponent(reason) +
"&countryOfOrigin=" + countryOfOrigin +
"&importedCountry=" + importedCountry +
"&fabricContent=" + encodeURIComponent(fabricContent) +
"&careInstructions=" + encodeURIComponent(careInstructions) +
"&offerDescription=" + encodeURIComponent(offerDescription) +
"&onlyAtMacys=" + onlyAtMacys +
"&legalOne=" + legalOne +
"&legalOneExplain=" + legalOneExplain +
"&legalTwo=" + legalTwo +
"&legalTwoExplain=" + legalTwoExplain +
"&legalThree=" + legalThree +
"&legalThreeExplain=" + legalThree +
"&legalFour=" + legalFour +
"&fifty=" + fifty +
//"&createdBy=" + userId
"&offerId=" + offerId +
"&merchId=" + merchId +
"&adID=" + adId +
"&eventID=" + eventID +
"&adNum=" + adNum
var ajaxMaster = new AjaxMaster(sql, "Puma.updateMerchFormForCutData(data)", "", "btiDispatcher.aspx");
sql = "action=updateMerchFormForCut&sql=" + encodeURIComponent(msql);
//objAjaxAd.SendQuery(sql);
// "[t0].[signedByUserID]," +
// "[t0].[signedStatus]," +
//"[t0].[dateSigned]," +
//"[t0].[signedLastByUserID]," +
//"[t0].[dateLastSigned1]," +
//"[t0].[signedLastStatus]" +
objAjaxAd.main_flag = "updateMerchFormForCutData";
objAjaxAd.SendQuery(sql);
//var ajaxMaster = new AjaxMaster(sql, "Puma.updateMerchFormForCutData(data)", "", "puma_core.aspx");
}
}
}

Write just " and not \" in the onClick attribute, or just omit the quotation marks:
onClick=Puma.saveTheCut()
The character \ has no special role in HTML; it’s just yet another character. So when you have onClick=\"Puma.saveTheCut()\", the actual attribute value is \"Puma.saveTheCut()\", which does not work of course, as you can see by looking at the console in the Developer Tools of your browser. You should see something the like following there:
SyntaxError: illegal character
\"Puma.saveTheCut()\"
(or with \"yup()\" when testing Agony’s jsfiddle).
As it is, the code should not work in any browser, and does not work in my IE 10 either.

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