.val Function Javascript Equivalent isnt functioning? - javascript

(If something isnt wrote right, please edit, Im not SUPER good with english language)
So i need save the Input’s Value in javascript, and Ive tried use .value with a selector, but it fails to return the value.
jquery function val() is not equivalent to "$(this).value="?
This question had some valuable insight, but didnt answer my question.
var Value = document.getElementById("test").value;
function save() {
localStorage.setItem("note"}, Value);
}
(function() {
Value = localStorage.getItem("note"));
})();
Basically I tried to save my data from an input, Im using inputs in settings page of another project, and I need settings to reload once my page is reloaded.
<input id=“test” placeholder=“Write Here”>
<button onclick=“save()”>Execute</button>
So I really expected it to reload the value of my settings input, and have the data I saved there when I reloaded my page, but nothing happened. I want it to save my data and reload it on page entering.

You made a lot of mistakes....
Here is the solution...
HTML
<input id="test" placeholder="Write Here">
<button onclick="save()">Execute</button>
JS
var Item = document.getElementById("test");
function save() {
localStorage.setItem("note", Item.value);
}
(function() {
Item.value = localStorage.getItem("note");
})();

Related

How can I getting textarea value using javascript and ckeditor4 [duplicate]

I'm a learner as far as JS goes and although I've spent a good few hours reading through tutorials which has helped lots but I'm still having problems figuring out exactly how I find out what a user is typing into a ckeditor textarea.
What I'm trying to do is have it so that when someone types into the textarea, whatever they type appears in a div in a different part of the page.
I've got a simple text input doing that just fine but because the text area is a ckEditor the similar code doesn't work.
I know the answer is here: ckEditor API textarea value but I don't know enough to figure out what I'm meant to do. I don't suppose anyone fancies helping me out?
The code I've got working is:
$('#CampaignTitle').bind("propertychange input", function() {
$('#titleBar').text(this.value);
});
and
<label for="CampaignTitle">Title</label>
<input name="data[Campaign][title]" type="text" id="CampaignTitle" />
and
<div id="titleBar" style="max-width:960px; max-height:76px;"></div>
I'm still having problems figuring out exactly how I find out what a
user is typing into a ckeditor textarea.
Ok, this is fairly easy. Assuming your editor is named "editor1", this will give you an alert with your its contents:
alert(CKEDITOR.instances.editor1.getData());
The harder part is detecting when the user types. From what I can tell, there isn't actually support to do that (and I'm not too impressed with the documentation btw). See this article:
http://alfonsoml.blogspot.com/2011/03/onchange-event-for-ckeditor.html
Instead, I would suggest setting a timer that is going to continuously update your second div with the value of the textarea:
timer = setInterval(updateDiv,100);
function updateDiv(){
var editorText = CKEDITOR.instances.editor1.getData();
$('#trackingDiv').html(editorText);
}
This seems to work just fine. Here's the entire thing for clarity:
<textarea id="editor1" name="editor1">This is sample text</textarea>
<div id="trackingDiv" ></div>
<script type="text/javascript">
CKEDITOR.replace( 'editor1' );
timer = setInterval(updateDiv,100);
function updateDiv(){
var editorText = CKEDITOR.instances.editor1.getData();
$('#trackingDiv').html(editorText);
}
</script>
At least as of CKEDITOR 4.4.5, you can set up a listener for every change to the editor's contents, rather than running a timer:
CKEDITOR.on("instanceCreated", function(event) {
event.editor.on("change", function () {
$("#trackingDiv").html(event.editor.getData());
});
});
I realize this may be too late for the OP, and doesn't show as the correct answer or have any votes (yet), but I thought I'd update the post for future readers.
Simply execute
CKEDITOR.instances[elementId].getData();
with element id = id of element assigned the editor.
You could integrate a function on JQuery
jQuery.fn.CKEditorValFor = function( element_id ){
return CKEDITOR.instances[element_id].getData();
}
and passing as a parameter the ckeditor element id
var campaign_title_value = $().CKEditorValFor('CampaignTitle');
i found following code working for ckeditor 5
ClassicEditor
.create( document.querySelector( '#editor' ) )
.then( editor => {
editor.model.document.on( 'change:data', () => {
editorData = editor.getData();
} );
} )
.catch( error => {
console.error( error );
} );
Well. You asked about get value from textarea but in your example you are using a input. Anyways, here we go:
$("#CampaignTitle").bind("keyup", function()
{
$("#titleBar").text($(this).val());
});
If you really wanted a textarea change your input type text to this
<textarea id="CampaignTitle"></textarea>
Hope it helps.
you can add the following code :
the ckeditor field data will be stored in $('#ELEMENT_ID').val() via each click. I've used the method and it works very well. ckeditor field data will be saved realtime and will be ready for sending.
$().click(function(){
$('#ELEMENT_ID').val(CKEDITOR.instances['ELEMENT_ID'].getData());
});
var campaignTitle= CKEDITOR.instances['CampaignTitle'].getData();

How to set a textbox to an eval() in javascript

Okay, so I am trying to make a quiz where you enter some code and the quiz executes the code to see if what you typed is the same as the answer.
Here is the code and this is how the webpage looks like:
questions = "PRINT HELLO"
document.getElementById("Question").innerHTML = questions
function check(){
document.getElementById("answertext").innerHTML = eval(document.getElementById("answerbox").value)
}
#answerbox{
width:100%;
height:500px;
font-size:25px;
}
<h1>QUIZZZ</h1>
<h2 id = Question>JAVASCRIPT CONSOLE AND EXERCISES</h1>
<h1 id = "hi"></h1>
<textarea rows="4" cols="50" id = "answerbox">
//put your answer here
</textarea>
<textarea rows= '4' cols = "50" id = "answertext">lol</h1>
</textarea>
<input type = "submit" onclick = "check()">
Run the code to see
I want the user to enter a document.write() statement inside the textbox, and have the evaluated code to be shown in the smaller multiline text box.
Try to put a document.write() statement in the textbox and run it. You should see a new page instead of the answer written in the text box.
I know that document.write is a bad practice to output things in javascript, and I know that you can edit raw HTML, but is there any other way a user can print a message without doing any of these choices?
Don't use eval.
Using eval is considered to be a bad practice. Read more for Why here. You can ask your user to just return the answer using a return statement as shown below, instead of asking them to do something complicated like document.write().
// Ask them to do this:
var codeFromTheAnswerBox = "var answer = 'HELLO'; return answer;"
// instead of this:
// var codeFromTheAnswerBox = "var answer = 'HELLO'; document.write(answer)";
// execute user's code
var code = new Function(codeFromTheAnswerBox);
var returnValue = code();
// Now do whatever you want to do with the answer like the following
alert("Your answer is " + returnValue);
You can use .append instead of document.write()
document.body.append("Hello World!", document.createElement('p'));
If you go to the Console tab of the DevTools in your browser, you can type javascript code and press enter to execute it. You will get helpful error messages that should help you with your project.
Ok. I realized your problem.
You can use iframe for this purpose. Add an iframe with an id similar 'answerIframe' instead of #answertext element.
Then move your #answertext element to a separated html and set address of iframe to it.
In iframe:
window.check=function(){
document.getElementById("answertext").innerHTML =
eval(document.answer);
}
And add a button to your iframe too. for iframe's button set this:
onclick="window.check()"
Add an Id to iframe's button similar: iframe_bt.
Now, when user clicks on button (in current page, no iframe) must call this (new check function in your main page):
function check(){
document.getElementById('#answerIframe').contentWindow.document.answer=document.getElementById("answerbox").value;
document.getElementById('#answerIframe').contentWindow.document.getElementById('#iframe_bt').click();
}
Also in your iframe, call a function in document's onload and add answertext dynamically if is not exists (because document.write) or reset the iframe before execute per answer.
Another way is replacing the document.write with other code similar: elem.insertAdjacentHtml(..) or etc before execute it.
Excuse me for any mistake, i typed with my cellphone.
I did not have a tool to test it, but the method and its generalities are correct.

javascript alert value from a tag

I have on a page a tag links generated from a database with an id. What im trying to do is in an alert box display the text inside the a tag.
Ive tried to have a look to see if I can see a previous question, which I have come up with the following but all I get in the alert box is object HTMLCollection
I have the following code:
<a id="bet" onclick="addSlip();" class="btn btn-round" style="text-align: left;">'.$home->one.' <span>'.$home->two.'</span></a>
and...
function addSlip() {
document.getElementById('bet').innerHTML=bet;
alert(bet);
}
Thanks for any constructive answers
You should do the following
function addSlip() {
var bet = document.getElementById('bet').textContent;
alert(bet);
}
the rest as it is.
or using jquery
function addSlip() {
var bet = $("#bet").text()
alert(bet);
}
The main problem of your program was that the alerted variable had no value. (undefined)
The way you wrote it if the variable bet had a value would change the innerHTML of the of the a tag to that value.
Now to the using innerHTML or textContent part. As mentioned here in terms of performance the textContent is better
You need to reverse the variable assignment of bet:
function addSlip() {
var bet = $("#bet").text();// or $("#bet").html() if you want the HTML alerted
alert(bet);
}
In your case alert will give you the HTML Object Collection only.
When you have an element with id, then you can access them anywhere in javascript
e.g. for the following HTML
<div id="bet">This is a div </div>
in JS
alert(bet);
will give you the html object collection.
Solution for you is update your code
function addSlip() {
document.getElementById('bet').innerHTML=bet;
alert(bet);
}
to
function addSlip() {
alert( document.getElementById('bet').innerHTML);
}
If there is some html elements also in the div you can update the function with
function addSlip() {
alert(document.getElementById('bet').textContent);
}

How can I append Form text to a URL in JQuery, in the following example:

I've seen a few similar posts, but nothing explains a method which fits into my example.
I'm looking to take what has been typed into a Form with the ID "searchbox", and append it to the following script:
Form:
<form method="get">
<span><input type="text" class="search rounded" placeholder="Search..." id='searchbox' autofocus></span>
</form>
JQuery:
$(function(){
$('input[type="text"]').keyup(function(){
var searchText = $(this).val().toLowerCase();
var appendedText= $(this).val();
$('ul > li > a').each(function(){
var currentLiText = $(this).attr('class')
showCurrentLi = currentLiText.indexOf(searchText) !== -1;
$(this).toggle(showCurrentLi);
if (event.which == 13 || event.keyCode == 13) {
chrome.tabs.create({url:'http://www.exampletestsite.com/'+appendText});
return false;
}
return true;
});
});
Most of the code simply filters a list of preset options, pressing enter will load the url appended with the typed text instead of using a clickable preset.
I'm trying to set the 'appendedtext' variable to get what has been typed into the search field, and on Enter press, load a URL with the appended text.
I thought this var would work, but it doesn't:
var appendedText= $('#searchbox').val();
I'm pretty sure I'm just an idiot though, since this seems incredibly simple. Any help would be really appreciated.
EDIT: Added form format for clarity. Fixed code snippet, added some information about the code.
The line var appendedText= $('#searchbox').val(); works perfectly well, as you can see in this fiddle (passing the event parameter isn't necessary, and certainly isn't the root of the problem). However, I got rid of the form and span elements, and the chrome.tabs stuff, so I suspect your issue lies in one of those.
I'm not sure how to help if that's not the actual problem, but as far as jQuery and .val() go, everything's fine.
It turns out my issue was with the $('input[type="text"]').keyup(function(){, specifically 'keyup'. Keyup would clear my searchbox content by default before sending the data which appended to the url. I merely changed it to keydown and everything worked perfectly.
Thanks for all your suggestions.

Getting the textarea value of a ckeditor textarea with javascript

I'm a learner as far as JS goes and although I've spent a good few hours reading through tutorials which has helped lots but I'm still having problems figuring out exactly how I find out what a user is typing into a ckeditor textarea.
What I'm trying to do is have it so that when someone types into the textarea, whatever they type appears in a div in a different part of the page.
I've got a simple text input doing that just fine but because the text area is a ckEditor the similar code doesn't work.
I know the answer is here: ckEditor API textarea value but I don't know enough to figure out what I'm meant to do. I don't suppose anyone fancies helping me out?
The code I've got working is:
$('#CampaignTitle').bind("propertychange input", function() {
$('#titleBar').text(this.value);
});
and
<label for="CampaignTitle">Title</label>
<input name="data[Campaign][title]" type="text" id="CampaignTitle" />
and
<div id="titleBar" style="max-width:960px; max-height:76px;"></div>
I'm still having problems figuring out exactly how I find out what a
user is typing into a ckeditor textarea.
Ok, this is fairly easy. Assuming your editor is named "editor1", this will give you an alert with your its contents:
alert(CKEDITOR.instances.editor1.getData());
The harder part is detecting when the user types. From what I can tell, there isn't actually support to do that (and I'm not too impressed with the documentation btw). See this article:
http://alfonsoml.blogspot.com/2011/03/onchange-event-for-ckeditor.html
Instead, I would suggest setting a timer that is going to continuously update your second div with the value of the textarea:
timer = setInterval(updateDiv,100);
function updateDiv(){
var editorText = CKEDITOR.instances.editor1.getData();
$('#trackingDiv').html(editorText);
}
This seems to work just fine. Here's the entire thing for clarity:
<textarea id="editor1" name="editor1">This is sample text</textarea>
<div id="trackingDiv" ></div>
<script type="text/javascript">
CKEDITOR.replace( 'editor1' );
timer = setInterval(updateDiv,100);
function updateDiv(){
var editorText = CKEDITOR.instances.editor1.getData();
$('#trackingDiv').html(editorText);
}
</script>
At least as of CKEDITOR 4.4.5, you can set up a listener for every change to the editor's contents, rather than running a timer:
CKEDITOR.on("instanceCreated", function(event) {
event.editor.on("change", function () {
$("#trackingDiv").html(event.editor.getData());
});
});
I realize this may be too late for the OP, and doesn't show as the correct answer or have any votes (yet), but I thought I'd update the post for future readers.
Simply execute
CKEDITOR.instances[elementId].getData();
with element id = id of element assigned the editor.
You could integrate a function on JQuery
jQuery.fn.CKEditorValFor = function( element_id ){
return CKEDITOR.instances[element_id].getData();
}
and passing as a parameter the ckeditor element id
var campaign_title_value = $().CKEditorValFor('CampaignTitle');
i found following code working for ckeditor 5
ClassicEditor
.create( document.querySelector( '#editor' ) )
.then( editor => {
editor.model.document.on( 'change:data', () => {
editorData = editor.getData();
} );
} )
.catch( error => {
console.error( error );
} );
Well. You asked about get value from textarea but in your example you are using a input. Anyways, here we go:
$("#CampaignTitle").bind("keyup", function()
{
$("#titleBar").text($(this).val());
});
If you really wanted a textarea change your input type text to this
<textarea id="CampaignTitle"></textarea>
Hope it helps.
you can add the following code :
the ckeditor field data will be stored in $('#ELEMENT_ID').val() via each click. I've used the method and it works very well. ckeditor field data will be saved realtime and will be ready for sending.
$().click(function(){
$('#ELEMENT_ID').val(CKEDITOR.instances['ELEMENT_ID'].getData());
});
var campaignTitle= CKEDITOR.instances['CampaignTitle'].getData();

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