Develop Reference

How to clear the value of an input if there is no results or if it has a null value?

I am trying to clear the value of an input depending if it finds or not an id, if it finds an existing id, js updates the value of an input, but if it doesn't it keeps the last one found but I need to have the value clear, can someone tell me what is wrong:
function driverdata(valueid)
{
var numero_id = valueid;
//console.log(valueid)
var idselect = document.getElementById('driver'+id_number).value;
document.getElementById("idinsearch"+ id_number).value = idselect;
//console.log(idselect);
var placa = document.getElementById("searchable"+idselect).value;
console.log(placa);
if (placa != null) {
document.getElementById("placa"+ id_number).value = placa;
} else {
document.getElementById("placa"+ id_number).value = "";
}
}

In the method driverdata you don't define variable id_number so it's undefined when you try get element by id
So if id_number is equal to the parameter of the method you can directly use it
moreover to clear value you are right it's elem.value = ""
withour yout html i can propose you the following one => your script run
function driverdata(numberId)
{
var idselect = document.getElementById('driver'+numberId).value;
document.getElementById("idinsearch"+ numberId).value = idselect;
var placa = document.getElementById("searchable"+idselect).value;
if (placa != null) {
document.getElementById("placa"+ numberId).value = placa;
} else {
document.getElementById("placa"+ numberId).value = "";
}
}
<div onclick="driverdata(1)">
click me<br/>
driver<input id="driver1" value="1"/><br/>
idinsearch<input id="idinsearch1"/><br/>
<div id="searchable1">
input that will be clear <input id="placa1" value="test"/>
</div>
</div>

Pass input text value to javascript not working

Good day. I have read and done almost all of the solution in the questions but cant seem to solve my problem. As written in my question, in mvc, i am passing a value from controller to view a string and then get by javascript to run a modal if ever a certain condition is met. please help. thanks.
here is the code in my controller:
public ActionResult Series()
{
List<sample> series = db.samples.Where(x => x.status == "False").ToList();
if ( series.Count == 0)
{
ViewBag.Info = "None";
}
else {
ViewBag.Series = series;
ViewBag.Info = "Have";
}
return View();
}
My View:
<input type="text" value="#ViewBag.Info" id="info" name="info" />
My Javascript:
#section Scripts{
<script>
$(window).on('load', function () {
var modelll = document.getElementById("#(ViewBag.Info)").value;
var s_end = document.getElementById("myNumber2").value;
var s_current = document.getElementById("myNumber3").value;
var s_status1 = document.getElementById("status").value;
var s_id1 = parseInt(document.getElementById("myNumber").value);
var s_end2 = parseInt(s_end, 10);
var s_current2 = parseInt(s_current, 10);
var x = parseInt(s_current, 10) + 1;
document.getElementById("item1").value = s_id1;
document.getElementById("item2").value = s_end;
document.getElementById("item3").value = x;
document.getElementById("status2").value = s_status1;
if (modelll === 'Have')
{
if ((s_current2 > s_end2) && (s_current2 != s_end2)) {
$('#myModal').modal({ backdrop: 'static', keyboard: false });
$('#myModal').modal('show');
}
}
else
{
$('#myModal').modal({ backdrop: 'static', keyboard:false });
$('#myModal').modal('show');
}
});
</script>
}

getElementById need an ID but you are passing #ViewBag.Info. change it to :
var modelll = document.getElementById("info").value;
also you are making many extra variables which are not really needed. for example to get what you have in s_current2, you can use
var s_current = parseInt(document.getElementById("myNumber3").value, 10);
no need to create another variable to convert it to integer.

To get the value from textbox
var modelll = document.getElementById("info");
To set the value to textbox
document.getElementById("info").value = var modelll;
you are using #ViewBag.Info instead of element id.

Following line is causing the problem in your code :
var modelll = document.getElementById("#(ViewBag.Info)").value;
// document.getElementById needs Id but you are passing #(ViewBag.Info) which is wrong
var modelll = document.getElementById("info").value; //info id of your textbox
// now check
if (modelll === 'Have')
{ }
else
{ }

Get second, third and so on values

I have this problem here
The problem has been solved, but my question is how can I get the second value from that, or the third one. The sheet will have many tables and at some point I will need a total for each table. Also, is there any solution to automatically find the the array number which contain date row for each table (instead defining this manually). Hope my explanation make sense.
Thank you!
Kind regards,
L.E. Test file

If I understood your question correctly, instead of breaking the loop when a match to "Total" is found do whatever is needed to be done within the loop like so...
var today = toDateFormat(new Date());
var todaysColumn =
values[5].map(toDateFormat).map(Number).indexOf(+today);
var emailDate = Utilities.formatDate(new Date(today),"GMT+1",
"dd/MM/yyyy");
for (var i=0; i<values.length; i++){
if (values[i][0]=='Total'){
nr = i;
Logger.log(nr);
var output = values[nr][todaysColumn];
// Do something with the output here I"m assuming you email it
}
}
The loop will keep going and find every "Total" and do the same thing. This answer assumes that the "Totals" are in the same column. You can get fancier with this if you only want certain tables to send and not others, but this should get you started.
I didn't quite understand the second part of your question...
"Also, is there any solution to automatically find the the array
number which contain date row for each table (instead defining this
manually). Hope my explanation make sense."
I'm guessing you want all the rows that contain "Total" in the specific column. You could instantiate a variable as an empty array like so, var totals = [];. Then instead of sending the email or whatever in the first loop you would push the row values to the array like so, totals.push(nr+1) . //adding 1 gives you the actual row number (rows count from 1 but arrays count from 0). You could then simply loop through the totals array and do whatever you wanted to do. Alternatively you could create an array of all the values instead of row numbers like totals.push(values[nr][todaysColumn]) and loop through that array. Lots of ways to solve this problem!
Ok based on our conversation below I've edited the "test" sheet and updated the code. Below are my edits
All edits have been made in your test sheet and verified working in Logger. Let me know if you have any questions.
Spreadsheet:
Added "Validation" Tab
Edited "Table" tab so the row with "Email Address" in Column A lines up with the desired lookup values (dates or categories)...this was only for the first two tables as all the others already had this criteria.
Code:
Create table/category selector...
In the editor go to File >> New >> HTMLfile
Name the file "inputHTML"
Copy and paste the following code into that file
<!DOCTYPE html>
<html>
<head>
<base target="_top">
</head>
<body>
<form class="notice_form" autocomplete="off" onsubmit="formSubmit(this)" target="hidden_iframe">
<select id="tables" onchange="hideunhideCatagory(this.value)" required></select>
<p></p>
<select id="categories" style="display:none"></select>
<hr/>
<button class="submit" type="submit">Get Total</button>
</form>
<script>
window.addEventListener('load', function() {
console.log('Page is loaded');
});
</script>
<script
src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script type="text/javascript">
// The code in this function runs when the page is loaded.
$(function() {
var tableRunner = google.script.run.withSuccessHandler(buildTableList);
var catagoryRunner = google.script.run.withSuccessHandler(buildCatagoryList);
tableRunner.getTables();
catagoryRunner.getCategories();
});
function buildTableList(tables) {
var list = $('#tables');
list.empty();
list.append('<option></option>');
for (var i = 0; i < tables.length; i++) {
if(tables[i]==''){break;}
list.append('<option>' + tables[i] + '</option>');
}
}
function buildCatagoryList(categories) {
var list = $('#categories');
list.empty();
list.append('<option></option>');
for (var i = 0; i < categories.length; i++) {
if(categories[i]==''){break;}
list.append('<option>' + categories[i] + '</option>');
}
}
function hideunhideCatagory(tableValue){
var catElem = document.getElementById("categories");
if(tableValue == "Total Calls By Date" || tableValue == "Total Appointments by Date"){
catElem.style.display = "none"
document.required = false;
}else{
catElem.style.display = "block"
document.required = true;
}
}
function formSubmit(argTheFormElement) {
var table = $("select[id=tables]").val(),
catagory = $("select[id=categories]").val();
console.log(table)
google.script.run
.withSuccessHandler(google.script.host.close)
.getTotal(table,catagory);
}
</script>
</body>
<div id="hiframe" style="display:block; visibility:hidden; float:right">
<iframe name="hidden_iframe" height="0px" width="0px" ></iframe>
</div>
</html>
Edits to Code.gs file
Replace code in Code.gs with this...
//This is a simple trigger that creates the menu item in your sheet
function onOpen() {
var ui = SpreadsheetApp.getUi();
ui.createMenu('Run Scripts Manually')
.addItem('Get Total','fncOpenMyDialog')
.addToUi();
}
//This function launches the dialog and is launched by the menu item
function fncOpenMyDialog() {
//Open a dialog
var htmlDlg = HtmlService.createHtmlOutputFromFile('inputHTML')
.setSandboxMode(HtmlService.SandboxMode.IFRAME)
.setWidth(200)
.setHeight(150);
SpreadsheetApp.getUi()
.showModalDialog(htmlDlg, 'Select table to get total for');
};
//main function called by clicking "Get Total" on the dialogue...variables are passed to this function from the formSubmit in the inputHTML javascript
function getTotal(table,catagory) {
function toDateFormat(date) {
try {return date.setHours(0,0,0,0);}
catch(e) {return;}
}
//get all values
var values = SpreadsheetApp
.openById("10pB0jDPG8HYolECQ3eg1lrOFjXQ6JRFwQ-llvdE2yuM")
.getSheetByName("Tables")
.getDataRange()
.getValues();
//declare/instantiate your variables
var tableHeaderRow, totalRow, tableFound = false;
//begin loop through column A in Tables Sheet
for (var i = 0; i<values.length; i++){
//test to see if values have already been found if so break the loop
if(tableFound == true){break;}
//check to see if value matches selected table
if (values[i][0]==table){
//start another loop immediately after the match row
for(var x=i+1; x<values.length; x++){
if(values[x][0] == "Email Address"){ //This header needs to consistantly denote the row that contains the headers
tableHeaderRow = x;
tableFound = true;
}else if(values[x][0] == "Total"){
totalRow = x;
break;
}
}
}
}
Logger.log("Header Row = "+tableHeaderRow)
Logger.log("Total Row = "+ totalRow)
var today = toDateFormat(new Date())
var columnToTotal;
if(catagory==''){
columnToTotal = values[tableHeaderRow].map(toDateFormat).map(Number).indexOf(+today);
}else{
columnToTotal = values[tableHeaderRow].indexOf(catagory);
}
var output = values[totalRow][columnToTotal];
Logger.log(output);
var emailDate = Utilities.formatDate(new Date(today),"GMT+1", "dd/MM/yyyy");
//here is where you would put your code to do something with the output
}
/** The functions below are used by the form to populate the selects **/
function getTables(){
var cFile = SpreadsheetApp.getActive();
var cSheet = cFile.getSheetByName('Validation');
var cSheetHeader = cSheet.getRange(1,1,cSheet.getLastRow(),cSheet.getLastColumn()).getValues().shift();
var tabelCol = (cSheetHeader.indexOf("Tables")+1);
var tables = cSheet.getRange(2,tabelCol,cSheet.getLastRow(),1).getValues();
return tables.filter(function (elem){
return elem != "";
});
}
function getCatagories(){
var cFile = SpreadsheetApp.getActive();
var cSheet = cFile.getSheetByName('Validation');
var cSheetHeader = cSheet.getRange(1,1,cSheet.getLastRow(),cSheet.getLastColumn()).getValues().shift();
var catagoriesCol = (cSheetHeader.indexOf("Catagory")+1);
var catagories = cSheet.getRange(2,catagoriesCol,cSheet.getLastRow(),1).getValues();
return catagories.filter(function (elem){
return elem != "";
});
}

Need Help in adding div elements which have integer values

I have three DIV whose content are integer values and are updated frequently from another source. My main idea here was to take the content of the three divs parse it into float or integer , add them and display the total in another div. I am looking forward to handle the content in div using a onchange() function, because the the content in them will be changing frequently. Below is my code, its currently not working, i will really appreciate it if you give me a hand of help with this.
The content in this divs will be frequently updated using a text input, you can create a text inout that manipulates the first div then displays the whole sum
Thanks in advance.
<script>
function total() {
var value1 = parseFloat($('#div1').innerHTML ()) || 0;
var value2 = parseFloat($('#div2').innerHTML ()) || 0;
var value3 = parseFloat($('#div1').innerHTML ()) || 0;
var total;
total=value1 + value2 + value3;
$('#total').html(total);
}
</script>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
</head>
<body >
<div id="mywraper">
<div id="div1" onchange="total()">
4
</div>
<div id="div2" onchange="total()">
5
</div>
<div id="div2" onchange="total()">
6
</div>
</div>
<div id="total_div">
Total $<span id="total"></span>
</div>
</body>
</html>

Use this html()
<script>
function total() {
var value1 = parseFloat($('#div1').html()) || 0;
var value2 = parseFloat($('#div2').html()) || 0;
var value3 = parseFloat($('#div1').html()) || 0;
var total;
total=value1 + value2 + value3;
$('#total').html(total);
}
</script>

Try this:
function total() {
// fetch text using 'text' method and then convert string into number using '+' operator
var value1 = +$('#div1').text() || 0;
var value2 = +$('#div1').text() || 0;
var value3 = +$('#div1').text() || 0;
var total = value1 + value2 + value3;
$('#total').html(total);
}
http://jsfiddle.net/uxajjk1b/2/

Use text() instead of innerHTML, like so:
<script>
function total() {
var value1 = parseFloat($('#div1').text()) || 0;
var value2 = parseFloat($('#div2').text()) || 0;
var value3 = parseFloat($('#div1').text()) || 0;
var total;
total=value1 + value2 + value3;
$('#total').html(total);
}
</script>

I didn't really want to answer, as this might be difficult to solve due to the fact that we have no idea how the values are updated in the first place. However, I ended up doing relatively extensive example, so here we are.
So as mentioned before, onChange requires user input or action to detect any change. So that means your total() would only trigger once when the page is loaded ( assuming it's placed right before </body> ).
The best method would be to also stick the total() inside the original function that changes the values inside the html elements. This way total() is also triggered each time.
I couldn't resist making the total() more dynamic. This way, if you add or remove those child divs, the javascript won't need to be updated.
Here's a link to the original jsfiddle
var parentContainer = $('#mywraper');
function total() {
var values = {}; // Optional****
var total = 0;
// Loops through parent containers children ( in this case div elements ).
parentContainer.children().text(function( i, val ) {
var value = parseInt( val );
// Creates a variable where the variable name is based on the current elements index and value is based on the text inside the element.
values[ 'child_' + (i+1) ] = value; // Optional****
// Sums up all the values
total += value;
});
// The optional lines enable you independently check each value, for example:
// console.log( values.child_1 )
// Push total into the #total element.
$('#total').html( total );
}
total();
Here's an example where the values are updated with a click event. So what you do is just add the total() inside the click event as well.
function total() {
var parentContainer = $('#mywraper'),
total = 0;
parentContainer.children().text(function( i, val ) {
total += parseInt( val );
});
$('#total').html( total );
}
total();
$('#updateBtn').on("click", function() {
$('#mywraper').children().text(function( i, val ) {
return parseInt( val ) + 1;
});
total();
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="mywraper">
<div>4</div>
<div>5</div>
<div>6</div>
</div>
<div id="total_div">
Total $<span id="total"></span>
</div>
<button id="updateBtn">Update values</button>

Passing array -- scope

I want to pass an array from one external .js file to another.
Each of these files works fine by themselves, but I am having a problem passing the array from pickClass.js to displayStudent.js, and getting the names and "remaining" value to display in the html file. I know it has something to do with how the arrays are declared, but I can't seem to get it to work properly.
The first file declares the array choice:
(masterStudentList.js):
var class1 = ['Brown, Abe','Drifter, Charlie','Freed, Eve'];
var class2 = ['Vole, Ug','Xylo, William','Zyzzyx, Yakob'];
The second picks which array to use based on the radio buttons (pickClass.js):
var classPicked = array(1);
function randomize(){
return (Math.round(Math.random())-0.5); }
function radioResult(){
var chooseClass = document.getElementsByName("chooseClass");
for (i = 0; i < chooseClass.length; i++){currentButton = chooseClass[i];
if (currentButton.checked){
var selectedButton = currentButton.value;
} // end if
} // end for
var output = document.getElementById("output");
var response = "You chose ";
response += selectedButton + "\n";
output.innerHTML = response;
chosenClass = new Array();
if (selectedButton == "class1")
{chosenClass = class1;}
else
{chosenClass = class2;}
var text = "";
var nametext = "";
var i;
for (i = 0; i < chosenClass.length; i++) {
text += chosenClass[i]+ ' / ';
}
var showText = "";
l = chosenClass.length;
classPicked = Array(l);
for (var i = 0; i < l; ++i) {
classPicked[i] = chosenClass[i].split(', ').reverse().join(' ');
showText += classPicked[i]+ '<br>';
}
//return = classPicked;
document.getElementById("classList").innerHTML = classPicked;
} // end function
This works properly.
I then want to pass "classPicked" to another .js file (displayStudent.js) which will randomize the student list, loop and display the students for a few seconds, and then end with one student name.
basket = classPicked; //This is where the array should be passed
function randOrd(){
return (Math.round(Math.random())-0.5); }
function showBasket(){
mixedBasket = basket.sort( randOrd ); //randomize the array
var i = 0; // the index of the current item to show
document.getElementById("remaining").innerHTML = basket.length;
fruitDisplay = setInterval(function() {
document.getElementById('showStud')
.innerHTML = mixedBasket[i++]; // get the item and increment
if (i == mixedBasket.length) i = 0; // reset to first element if you've reached the end
}, 100); //speed to display items
var endFruitDisplay = setTimeout(function()
{ clearInterval(fruitDisplay);
var index = mixedBasket.indexOf(document.getElementById('showStud').innerHTML);
mixedBasket.splice(index,1);
}, 3500); //stop display after x milliseconds
}
Here is the html (master.html). It's just rough -- I'll be working on the layout later:
<html>
<head>
<script src="masterStudentList.js" type="text/javascript"></script>
<script src="pickClass.js" type="text/javascript"></script>
<script src="displayStudent.js" type="text/javascript"></script>
</head>
<body>
<h2>Choose Class</h2>
<form action = "">
<fieldset>
<input type = "radio"
name = "chooseClass"
id = "radSpoon"
value = "class1"
checked = "checked" />
<label for = "radSpoon">Class 1</label>
<input type = "radio"
name = "chooseClass"
id = "radFlower"
value = "class2" />
<label for = "radFlower">Class 2</label>
<button type = "button"
onclick = "radioResult()"> Choose Class
</button>
<div id = "output">
</fieldset>
</form>
</div>
<center>
<h1> <span id="chooseStud"></span><p></h1>
<script> var fruitSound = new Audio();
fruitSound.src = "boardfill.mp3";
function showFruitwithSound()
{
fruitSound.play(); // Play button sound now
showBasket()
}
</script>
Remaining: <span id = "remaining" ></span>
<p>
<button onclick="showFruitwithSound()">Choose Student</button>
</center>
pickedClassList = <p id = classList> </p>
</body>
</html>

You shouldn't use global variable like this (I encourage you to read more on this theme) and I'm not sure I understand what you're trying to do... but the solution of your issue should be to move the basket = classPicked; line into your showBasket method :
basket = classPicked; //This is where the array should be passed
function randOrd(){
return (Math.round(Math.random())-0.5);
}
function showBasket(){
// whatever
}
should be :
function randOrd(){
return (Math.round(Math.random())-0.5);
}
function showBasket(){
basket = classPicked; //This is where the array should be passed
// whatever
}
This way, each time you call showBasket, this method will use the last value of classPicked.
Otherwise, basket will always keep the reference on the first value of classPicked.
Why ? because each time you assign a new Array to the basket variable (classPicked = Array(l);) instead of changing directly it's content by :
emptying it : while (classPicked.length > 0) { classPicked.pop(); }
and then adding new data : classPicked.concat(chosenClass)

You can't pass things to files; you could call a function defined in displayStudent.js, pass it classPicked, and have it assign it to basket.

I noticed this at the end of your second chunk of code ...
} // end function
This could indicate the classPicked is declared inside a function (I don't see one on the code). Because it is inside function scope, your set of code that is trying to use it cannot.
Push the declaraction of classPicked outside of the function.
var classPicked = Array(1);
function thisusesclasspicked() {
...
Also, please start indenting your code properly, it will become much easier to maintain and read.
UPDATE FROM COMMENTS:
I see the declaration now ...
classPicked = Array(l);
for (var i = 0; i < l; ++i) {
classPicked[i] = chosenClass[i].split(', ').reverse().join(' ');
showText += classPicked[i]+ '<br>';
}
... however, you are re-assigning the array with an element of one just before you attempt to make modifications to it ... You are emptying it there: classPicked = Array(l);