Develop Reference

How to append more than one element using appendChild

I have one cell (columns), in which I want to add two buttons. This is what I created:
var editbtn = document.createElement('button');
editbtn.type= "button";
editbtn.className= "editbtn";
editbtn.id= "edit-button-"+(i+1);
editbtn.innerHTML= "Edit";
editbtn.onclick = editRow.bind(this, i + 1);
var savebtn = document.createElement('button');
savebtn.type= "button";
savebtn.className= "savebtn";
savebtn.id= "save-button-"+(i+1);
savebtn.innerHTML= "Save";
savebtn.onclick = saveRow.bind(this, i + 1);
cell3.appendChild(editbtn);
cell3.appendChild(savebtn);
However, only the savebtn appears. How to append two buttons or more in the same column?

You can easily do that with an array and a for loop:
var names = ['edit', 'save'];
var editRows = [editRow, saveRow];
for ( var i = 0; i < names.length; i++ )
{
var btn = document.createElement('button');
btn.type = "button";
btn.className = names[i] + "btn";
btn.id = names[i] + "-button-" + (i+1);
btn.innerHTML = names[i];
btn.onclick = editRows[i].(this, i + 1);
cell3.appendChild( editbtn );
}
You can add as many button as you want then just updating names and editRows accordingly, no need to touch the for loop.

Function to hide/show only one DIV at a time

I currently have a JavaScript that is looking at a SharePoint list, and pulling back all of the items that meet the criteria in the REST call.
It currently creates DIVs and appends them to a wrapper DIV. The intention of the button is to show/hide the sub-DIVs.
Right now, when I click any of the buttons that are produced, it expands all of the hidden divs. What I'm trying to accomplish is to be able to click each respective button and have its nested div show/hide.
Here is my code:
var listName = "announcement";
var titleField = "Title";
var tipField = "Quote";
var dateFieldFrom = "DateFrom";
var dateFieldTo = "DateTo";
var category = "category";
var noteField = "note";
var query = "/_api/Web/Lists/GetByTitle('" + listName + "')/items?$select=" + titleField + "," + dateFieldTo + "," + dateFieldFrom + "," + category + "," + noteField + "," + tipField;
var today = new Date();
var btnClass = "toggle"
todayString = today.getFullYear() + "-" + (today.getMonth() + 1) + "-" + today.getDate();
//This is the query filter string where we compare the values in the 2 date fields against the current date
query += "&$filter=('" + todayString + "' ge " + dateFieldFrom + " ) and (" + dateFieldTo + " ge '" + todayString + "')";;
var call = $.ajax({
url: _spPageContextInfo.webAbsoluteUrl + query,
type: "GET",
dataType: "json",
headers: {
Accept: "application/json;odata=verbose"
}
});
call.done(function(data, textStatus, jqXHR) {
var divCount = data.d.results.length;
for (var i = 0; i < divCount; i++) {
var tip = data.d.results[i][tipField]; //this is where it looks at the quote field to determine what quote to place in the current dynamically created DIV
var cat = data.d.results[i][category]; //this is where it looks at the category field to determine what color to style the background of the current dynamically created DIV
var message = data.d.results[i][noteField];
var ID = "NewDiv-" + i
var PID = "P-" + i
var BID = "btn-" + i
// Create Message DIV
var element = document.createElement("div"); //This is the creation of the dynamic DIV
element.id = ID //This is assigning a DIV an ID
element.appendChild(document.createTextNode(tip));
// Create Inner message DIV
var innerDiv = document.createElement("div"); // Create a <div> element//New Code
innerDiv.id = PID
innerDiv.appendChild(document.createTextNode(message));
// Create button to show/hide the div
var btn = document.createElement("BUTTON");
btn.id = BID
btn.appendChild(document.createTextNode("show/hide message below"));
btn.className = btnClass
// Append Inner DIVs
document.getElementById('wrapper').appendChild(element); //This is the parent DIV element that all newly created DIVs get created into
document.getElementById(ID).appendChild(btn); // Append the button to the newly created DIV
document.getElementById(ID).appendChild(innerDiv); //This is the message that appears after the newly created DIVs
if (cat == 'Information') {
document.getElementById(ID).style.backgroundColor = '#d9edf7'; //Blue Color
document.getElementById(PID).style.backgroundColor = '#d9edf7'; //Blue Color
document.getElementById(PID).style.margin = '3px';
document.getElementById(BID).style.backgroundColor = '#d9edf7';
document.getElementById(BID).style.border = 'none';
innerDiv.className = "alert alert-info"
element.className = "alert alert-info"
}
if (cat == 'Warning') {
document.getElementById(ID).style.backgroundColor = '#fcf8e3'; //Orange Color
document.getElementById(PID).style.backgroundColor = '#fcf8e3'; //Orange Color
document.getElementById(PID).style.margin = '3px';
document.getElementById(BID).style.backgroundColor = '#fcf8e3';
document.getElementById(BID).style.border = 'none';
innerDiv.className = "alert alert-warning"
element.className = "alert alert-warning"
}
if (cat == 'Critical') {
document.getElementById(ID).style.backgroundColor = '#f2dede'; //Red Color
document.getElementById(PID).style.backgroundColor = '#f2dede'; //Red Color
document.getElementById(PID).style.margin = '3px';
document.getElementById(BID).style.backgroundColor = '#f2dede';
document.getElementById(BID).style.border = 'none';
innerDiv.className = "alert alert-danger"
element.className = "alert alert-danger"
}
}
// The below variables and for loop ensure that all sub messages are initially hidden, until the show/hide button is clicked
var curDiv
var curID
for (var i = 0; i < divCount; i++) {
curID = "P-" + i
curDiv = document.getElementById(curID)
curDiv.style.display = 'none';
}
// The function below is to assign an event to the button to show/hide the sub message
var f = function(a) {
var cDiv
for (var z = 0; z < divCount; z++) {
cDiv = "P-" + z
var div = document.getElementById(cDiv);
if (div.style.display !== 'none') {
div.style.display = 'none';
} else {
div.style.display = 'block';
}
}
return false;
}
var elems = document.getElementsByClassName("toggle");
var idx
for (var i = 0, len = elems.length; i < len; i++) {
elems[i].onclick = f;
}
});
<div id="wrapper" class="header"> </div>

You're assigning all of your buttons the same onclick function event handler, and that function loops through all the divs and shows them or hides them.
An alternative approach would be to have the event handler toggle only the specific div that's associated with the button.
When you first create the button, you can assign an event handler to it immediately and pass in a reference to the div you want to hide:
var innerDiv = document.createElement("div");
innerDiv.id = PID
innerDiv.appendChild(document.createTextNode(message));
var btn = document.createElement("BUTTON");
// Immediately-invoked function expression to attach event handler to inner div:
(function(d){
btn.onclick = function(){ f(d); };
})(innerDiv);
Then just update your f function to accept as a parameter the div you want to toggle.
// The function below is to assign an event to the button to show/hide the sub message
function f(div){
if (div.style.display !== 'none') {
div.style.display = 'none';
} else {
div.style.display = 'block';
}
return false;
}
You can then remove the last few lines of code where you're assigning the buttons to the elems collection and looping through it to attach an onclick function.

You can replace all of this - which loops over all divs
// The function below is to assign an event to the button to show/hide the sub message
var f = function(a) {
var cDiv
for (var z = 0; z < divCount; z++) {
cDiv = "P-" + z
var div = document.getElementById(cDiv);
if (div.style.display !== 'none') {
div.style.display = 'none';
} else {
div.style.display = 'block';
}
}
return false;
}
var elems = document.getElementsByClassName("toggle");
var idx
for (var i = 0, len = elems.length; i < len; i++) {
elems[i].onclick = f;
}
with this, it delegates the click on the button in the wrapper and toggles the next object after the button
$('#wrapper').on("click",".toggle",function(e) { // notice the delegation
e.preventDefault(); // in case you forget type="button"
$(this).next().toggle();
});
Like this:
$(function() {
$('#wrapper').on("click", ".toggle", function(e) {
e.preventDefault();
$(this).next().toggle();
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<div id="wrapper">
<div id="NewDiv-0" class="alert alert-info" style="background-color: rgb(217, 237, 247);">Debbie Teng joins PD Tax!********
<button id="btn-0" class="toggle" style="background-color: rgb(217, 237, 247); border: none;">show/hide message below</button>
<div id="P-0" class="alert alert-info" style="background-color: rgb(217, 237, 247); margin: 3px; display: none;">yadayada1​</div>
</div>
</div>

Dynamic checkbox to hide dynamic inputbox

I'm rendering a dynamic input and checkbox from an array object which is fine, however I'm not quite sure how to hide the input when I click on the checkbox relative to the input.
function dynamicStuff () {
var objs = ['Id', 'Name', 'Age'];
for (var i = 0; i < objs.length; i++) {
objs[i];
var cElement = document.createElement("input");
cElement.type = "checkbox";
cElement.name = objs[i];
cElement.id = objs[i];
var cElementInput = document.createElement("input");
cElementInput.type = "text";
cElementInput.name = objs[i];
cElementInput.id = objs[i];
cElementInput.placeholder = objs[i]
document.getElementById('chkBox').appendChild(cElement);
document.getElementById('chkBox').appendChild(cElementInput);
}
}
Live example.
Saving on localStroage:
function chkboxCookie() {
var indexOfItem = checkAllFields.indexOf(this.id);
if (indexOfItem >= 0) {
checkAllFields.splice(indexOfItem, 1);
} else {
checkAllFields.push(this.id);
}
/* it saves paramater name in the localStorage*/
localStorage.setItem("checkedUsers", JSON.stringify(checkAllFields));
}
How do I hide the input that I ticked and potentially save that input name/Id in the localStorage?

You'd add an event handler that does something to the input when the checkbox is checked
function dynamicStuff() {
var objs = ['Id', 'Name', 'Age'];
for (var j = 0; j < objs.length; j++) {
(function(i) {
objs[i];
var cElementInput = document.createElement("input");
cElementInput.type = "text";
cElementInput.name = objs[i];
cElementInput.id = objs[i];
cElementInput.placeholder = objs[i];
var cElement = document.createElement("input");
cElement.type = "checkbox";
cElement.name = objs[i];
cElement.id = objs[i];
cElement.addEventListener('change', function() {
cElementInput.style.display = this.checked ? 'none' : 'inline';
localStorage.setItem(objs[i], this.value);
});
var br = document.createElement('br');
document.getElementById('chkBox').appendChild(cElement);
document.getElementById('chkBox').appendChild(cElementInput);
document.getElementById('chkBox').appendChild(br);
document.getElementById('chkBox').appendChild(br.cloneNode());
})(j);
}
}
dynamicStuff()
<div id="chkBox"></div>

Working fiddle.
The id attribute should be unique in the same page so try to change the id of the input for example :
cElementInput.id = objs[i]+'_input';
And attach change event to the checkbox's where you'll show/hide related inputs:
cElement.addEventListener("change", toggleInput, false);
Then define your toggleInput() function :
function toggleInput(){
var input_id = this.id+'_input';
document.getElementById(input_id).style.display = this.checked ? 'inline' : 'none';
localStorage.setItem(this.id, this.value);
}
To check/uncheck the checkboxe's based on localStorage, get the data first :
var localStorageData = JSON.parse(localStorage.getItem("checkedUsers"));
var data = localStorageData==null?[]:localStorageData;
Then check for the the values presented in the array and check/uncheck checkboxe's :
if(data.indexOf(objs[i]) >= 0)
cElement.checked = true;
else
cElement.checked = false;
Hope this helps.

Javascript add row to HTML table with text and onClick

i am adding a new table row in javascript:
var i=1;
function addRow(seq, nominalcode, description, quantity, unitprice) {
seq = seq || '';
nominalcode = nominalcode || '';
description = description || '';
quantity = quantity || '';
unitprice = unitprice || '';
var tbl = document.getElementById('table1');
var lastRow = tbl.rows.length - 4;
//var iteration = lastRow - 1;
var row = tbl.insertRow(lastRow);
row.id = 'item_row_' + i;
var Cell0 = row.insertCell(0);
var elItemSequence = document.createElement('input');
elItemSequence.type = 'hidden';
elItemSequence.name = 'item_sequence' + i;
elItemSequence.id = 'item_sequence' + i;
elItemSequence.value = seq;
Cell0.appendChild(elItemSequence);
var elNominalcode = document.createElement('input');
elNominalcode.type = 'textarea';
elNominalcode.className = 'form-control';
elNominalcode.name = 'nominal_code' + i;
elNominalcode.id = 'nominal_code' + i;
elNominalcode.placeholder = 'Nominal Code';
elNominalcode.value = nominalcode;
Cell0.appendChild(elNominalcode);
var Cell1 = row.insertCell(1);
var elDescription = document.createElement('textarea');
elDescription.type = 'textarea';
elDescription.className = 'form-control';
elDescription.name = 'description' + i;
elDescription.id = 'description' + i;
elDescription.placeholder = 'Description';
elDescription.value = description;
elDescription.cols = 40;
elDescription.rows = 2;
Cell1.appendChild(elDescription);
var Cell2 = row.insertCell(2);
var elQuantity = document.createElement('input');
elQuantity.type = 'text';
elQuantity.className = 'form-control';
elQuantity.name = 'quantity' + i;
elQuantity.id = 'quantity' + i;
elQuantity.placeholder = 'Quantity';
elQuantity.value = quantity;
elQuantity.value = quantity;
Cell2 .appendChild(elQuantity);
var Cell3 = row.insertCell(3);
var elUnitPrice = document.createElement('input');
elUnitPrice.type = 'text';
elUnitPrice.className = 'form-control';
elUnitPrice.name = 'unitprice' + i;
elUnitPrice.id = 'unitprice' + i;
elUnitPrice.placeholder = 'Price';
elUnitPrice.value = unitprice;
Cell3.appendChild(elUnitPrice);
var Cell4 = row.insertCell(4);
var elDelete = document.createElement('a');
elDelete.href = '#';
elDelete.onclick = function(){ DeleteInvoiceLine(seq, i) };
elDelete.text = 'Delete' + i;
Cell4.appendChild(elDelete);
i++;
document.getElementById('numrows').value = (i-1);
//alert(i);
}
in the above code there is an onClick action which calls a function
but everytime the row is added its running the function, how can i make it only call the function on click of the a anchor
my function is:
function DeleteInvoiceLine(seq, row_num) {
alert(seq + '/' + row_num);
}

You can try anonymous function
elDelete.onclick = function(){ DeleteInvoiceLine(seq) };

Try this:
...
elDelete.setAttribute("onclick", "DeleteInvoiceLine("+ seq +","+ i +")");
....

There are several issues in your code.
1. elDelete.onclick=... not onClick
2. As you note DeleteInvoiceLine(seq) run at the moment the element created.
This is because you assign result of the function, not function to onclick event.
3. (not asked yet) What is sec variable? I suspect something like for(var sec=0;sec<N;sec++) and your code is inside the loop. This will not work (see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Closures).
4. elDelete.onclick = function(){ DeleteInvoiceLine(seq) }; doesn't work because sec is out of scope at the moment of click.
Some fixes.
var i = 0;
//...
for(var sec=0;sec<N;sec++){
//your code
elDelete.onclick = DeleteInvoiceLine(seq, i);//I keep it with purpose
//your code
}
//...
i++;
//The key moment
function DeleteInvoiceLine(seq, row_num){
//sec comes here from the loop
return function(){//note (); (sec) would kill all construction
//and in this context would be **event {type:'click'}
$.ajax(
//your code which uses **sec** and/or **row_num**
//this time sec and row_num are available from parent scope
);//$.ajax
}//return function
}//function DeleteInvoiceLine

how to create several buttons dynamically in for loop

Here id my code. I want to append 4 buttons inside the specific div. In the other words, I want to put these 4 buttons inside ''. Now it works but they are not inside the div.
getmyItems function is a function that contains an array of information like: title, description , age ,... .
Help
getmyItems(param, function(data) {
var mtItem = JSON.stringify(data);
myItem = JSON.parse(mtItem);
var Item = document.getElementById('myItems');
for (var i = 0; i < myItem.results.length; i++) {
var buffer = "";
buffer += '<div class="act-time">';
buffer += '<div class="activity-body act-in">';
buffer += '<span class="arrow"></span>';
buffer += '<div class="text">';
buffer += '<p class="attribution">';
buffer += ''+myItem.results[i].title+'';
buffer += myItem.results[i].description;
buffer += '</p>';
buffer += '</div>';
buffer += '</div>';
buffer += '</div>';
var div = document.createElement('div');
div.innerHTML = buffer;
//var elem = div.firstChild;
Item.appendChild(div);
var btn = document.createElement('input');
btn.setAttribute('type', 'button');
btn.setAttribute('class', 'btn btn-danger');
btn.value = "Delete";
btn.onclick = (function(i) {
return function() {
var c=confirm('Are you Sure? ');
if (c==true)
doDelete(myItem.results[i].item_id);
};
})(i);
Item.appendChild(btn);
var show_btn=document.createElement('input');
show_btn.setAttribute('type','button');
show_btn.setAttribute('class','btn btn-primary');
show_btn.value="ShowInDetail";
show_btn.onclick=(function(i){
return function(){
showInDetail(myItem.results[i]);
window.location='showInDetail.html';
};
})(i);
Item.appendChild(show_btn);
var extend_btn=document.createElement('input');
extend_btn.setAttribute('class','btn btn-warning');
extend_btn.setAttribute('type','button');
extend_btn.value="Extend";
extend_btn.onclick=(function(i){
return function(){
extendItem(myItem.results[i]);
window.location='extendItem.html';
};
})(i);
Item.appendChild(extend_btn);
var bookmark=document.createElement('input');
bookmark.setAttribute('type','button');
bookmark.setAttribute('class','btn btn-primary');
bookmark.value='Bookmark';
bookmark.onclick=(function(i){
return function(){
var p={user_id:localStorage.getItem('user_id')};
window.localStorage.setItem('this_item_id', myItem.results[i].item_id);
getBookmarks(p, function(d){
var bk=JSON.stringify(d);
bk=JSON.parse(bk);
if(bk.results){
var l=0;
for(var j in bk.results){
if(bk.results[j].item_id==localStorage.getItem('this_item_id')){
removeBookmark(bk.results[j]);
l=1;
}
}if(l==0){
addBookmark(myItem.results[i]);
}
}else{
addBookmark(myItem.results[i]);
}
});
};
})(i);
Item.appendChild(bookmark);
//document.getElementById(i).appendChild(btn);
}
});

In what specific div do you want them? So far, in this way the four buttons are inside the myItens div see in the fiddle and in the code below.
var getmyItems = function(data) {
var item = document.getElementById('myItems');
for (var i = 0; i < data.length; i++) {
var result = data[i];
// creation of the buffer outer div
var buffer = document.createElement('div');
buffer.className = 'act-time';
//creation of de activity-body
var activity = document.createElement('div');
activity.className = 'activity-body act-in';
//creation of the first span
var arrow = document.createElement('span');
arrow.className = 'arrow';
//creation of the most inner div
var textDiv = document.createElement('div');
textDiv.className = 'text';
//creation of the content of the most inner div
var attribution = '';
attribution += '<p class="attribution">';
attribution += '' + result.title + '';
attribution += result.description;
attribution += '</p>';
//initialize the text div
textDiv.innerHTML = attribution;
//put the arrow span inside the activity div
activity.appendChild(arrow);
// put the text div inside the activity div
activity.appendChild(textDiv);
//put the activity inside the buffer div
// each time appendChild is applied the element is attach tho the end of the target element
buffer.appendChild(activity);
var div = document.createElement('div');
div.appendChild(buffer);
item.appendChild(div);
var btn = document.createElement('input');
btn.setAttribute('type', 'button');
btn.setAttribute('class', 'btn btn-danger');
btn.value = "Delete";
btn.onclick = (function(i) {
return function() {
var c = confirm('Are you Sure? ');
if (c === true) {
//do something;
};
};
})(i);
// now that all div are created you can choose which div you want to put the button inside.
// in this I chose the buffer.
buffer.appendChild(btn);
var showBtn = document.createElement('input');
showBtn.setAttribute('type', 'button');
showBtn.setAttribute('class', 'btn btn-primary');
showBtn.value = "ShowInDetail";
showBtn.onclick = (function(i) {
return function() {
window.location = 'showInDetail.html';
//do something
};
})(i);
// button is append to the end of the buffer
buffer.appendChild(showBtn);
var extendBtn = document.createElement('input');
extendBtn.setAttribute('class', 'btn btn-warning');
extendBtn.setAttribute('type', 'button');
extendBtn.value = "Extend";
extendBtn.onclick = (function(i) {
return function() {
window.location = 'extendItem.html';
//do something
};
})(i);
// button is append to the end of the buffer
buffer.appendChild(extendBtn);
var bookmark = document.createElement('input');
bookmark.setAttribute('type', 'button');
bookmark.setAttribute('class', 'btn btn-primary');
bookmark.value = 'Bookmark';
bookmark.onclick = (function(i) {
return function() {
var p = { user_id: localStorage.getItem('user_id') };
window.localStorage.setItem('this_item_id', myItem.results[i].item_id);
//do something
};
})(i);
// button is append to the end of the buffer
buffer.appendChild(bookmark);
}
};
var myItem = [{ title: 'person', description: 'familyName' }, { title: 'ohterPerson', description: 'otherFamilyName' }];
getmyItems(myItem);