Show hidden div if textfield value is set to a certain value - javascript

I hop somebody here is able to help me out.
I would like to show a hidden div tag if a textfield is set to a value.
I tried to solve the problem by myself, but it's not working, can you help me out here?
Thanks in advance!
<script type="text/javascript">
if(document.getElementById("art").value == "test"){
document.getElementById("divDetails").style.display='block';
}
</script>
<input type="text" name="art" id="art" value="" class="form-control" style="height: 3em; font-size: 9px;">
<div style="display: none" id="divDetails">Here is the hidden text</div>

There are 2 problems with your solution.
First you are running the JavaScript code before the HTML is rendered, creating the error in your demo.
Second, you are executing the JavaScript validation just once when you should actually always run it when the input value changes.
Try this instead:
<input
type="text"
name="art"
id="art"
value=""
class="form-control"
style="height: 3em; font-size: 9px;"
oninput="checkDetailsVisibility()">
<div
style="display: none"
id="divDetails">Here is the hidden text</div>
<script type="text/javascript">
function checkDetailsVisibility() {
if(document.getElementById("art").value == "test"){
document.getElementById("divDetails").style.display='block';
}
else {
document.getElementById("divDetails").style.display='none';
}
}
</script>
Every time that the value of the input changes, the function checkDetailsVisibility gets executed and either show or hide the desired div.

What you have will only run once on execution, you need to check when the input is changed.
document.getElementById("art").addEventListener("input",()=>{
if(document.getElementById("art").value == "test"){
document.getElementById("divDetails").style.display='block';
}
})

Related

Javascript onclick fails to send value while onfocus of text input

If a user clicks the save button as the next action after typing street data the onblur action intercepts the onclick and does not trigger the save. However, if you add some padding (30px) and click above the word save it works but below the word Save it does not work, the same as with no padding. I'm certain users will go right from typing text in the input field then click Save which will fail unless they first click somewhere else and then click Save. I’ve provide html and javascript example below. Is there a way using javascript to solve this issue?
<html>
<script>
function showstreet() {
var x = document.getElementById('street').value;
alert(x);
}
function focused() {
document.getElementById('title').style.display='';
document.getElementById('street').value='';
}
function blured() {
document.getElementById('title').style.display='none';
if (document.getElementById('street').value == '') {
document.getElementById('street').value='street';
}
}
</script>
<style>
.pad5 { padding:5px; }
.pad30 { padding:30px; }
</style>
<body>
<div id="title" class="pad5" style="display:none;">STREET NAME</div>
<div>
<input id="street" type="text" name="street" value="street" class="pad5"
onfocus="focused()" onblur="blured()">
</div>
<br>
<div>
<input type="button" value="Save" class="pad30" onclick="showstreet()">
</div>
</body>
</html>
I converted this to jsfiddle but I'm not doing something right (newbie) https://jsfiddle.net/eyo63mav/26/
use onMouseDown instead of onClick in your save button. Then onMouseDown will be fired before onBlur
below is working code
function showstreet() {
var x = document.getElementById('street').value;
alert(x);
}
function focused() {
document.getElementById('title').style.display = '';
document.getElementById('street').value = '';
}
function blured() {
document.getElementById('title').style.display = 'none';
if (document.getElementById('street').value == '') {
document.getElementById('street').value = 'street';
}
}
<div id="title" class="pad5" style="display:none;">STREET NAME</div>
<div>
<input id="street" type="text" value="street" class="pad5" onfocus="focused()" onblur="blured()">
</div>
<br>
<div>
<input type="button" value="Save" class="pad30" onclick="showstreet()">
</div>
Styling rarely makes a difference with events -- now, while that's a blanket statement and in lots of cases we find the styling of an inline element such as a link or a paragraph becoming problematic with inline events such as OnClick and OnFocus, in your case, adding thirty pixels to the size of a button is not your problem.
The problem with your code is that the variable you're assigning your #title's value to is local (it's inside the scope of showstreet(), of which can only be accessed by aforementioned function) -- nevermind that, it's never used again. You save a value to it, it alerts the user, and that's it -- it's never reassigned nor reused, so while it'll forever stay as the street name they entered, you'll never see it unless you apply it to something.
It took me a while to figure out what exactly you're trying to save, but I think I've managed it.
Here's the code I've created:
var streetValue = "Your street will appear here.";
function clickedField() {
// Init title
document.getElementById('title').innerHTML = streetValue;
// Reset field
document.getElementById('street').value = '';
}
function saveValue() {
// Reassign streetValue
streetValue = document.getElementById('street').value;
// Checking if value was left empty
if (streetValue === '') {
document.getElementById('title').innerHTML = "Error: No Street Entered!";
} else {
document.getElementById('title').innerHTML = streetValue;
}
}
(I'm not entirely sure what you had onblur for, but it should be very easy to insert back. If you need some help with that, comment on my reply, I'll be happy to.)
Now if we update the HTML with the approprate functions:
<div id="title" class="pad5" style="">STREET NAME</div>
<div>
<input id="street" type="text" name="street" value="street" class="pad5"
onfocus="clickedField()">
</div>
<br>
<div>
<input type="button" value="Save" class="pad30" onclick="saveValue()">
</div>

JQuery detects focusOut even if I still focus on input inside the same div. How to change it?

This is my code:
Javascript:
$(".test").on("focusout", function (e) {
$("#output").append("Lost focus<br>");
});
HTML:
Inputs inside div:
<div class="test">
<input type="text" />
<input type="text" />
</div><br>
Inputs outside div:<br>
<input type="text" />
<div id="output">
</div>
I want to detect if user leaves "div.test". Unfortunately, "focusout" works also when I move focus to other object inside this div.
Look at this fiddle: http://jsfiddle.net/Piotrek1/wfukje3g/6/
Click on first input and use Tab to switch through textboxes. "
Lost focus" should appear only if user move out from the div, but it happens always. Why is that and how to change it?
The $ operator returns a collection. You have two inputs inside the <div class="test">. So it matches all elements and children with the .test class.
I think what you want two divs with separate input elements and two different classes OR, use an ID on the actual input element so the $ operator only matches the input id you want this event to fire on. http://jsfiddle.net/wfukje3g/7/
$("#test").on("focusout", function (e) {
$("#output").append("Lost focus<br>");
});
<div class="sometest">
<input id="test" type="text" />
<input type="text" />
</div><br>
Inputs outside div:<br>
<input type="text" />
<div id="output">
</div>
I have implemented piece of code to handle div focus out
$(document).ready(function () {
var count = 1;
$("#name").focusout(function (e) {
if($(this).has(e.relatedTarget).length === 0) {
$("#output").append("<label style='width:100%;'>"+ count++ +" Name div focus out </label>");
}
});
});
Inputs inside div:
<div id="name" class="test">
<input type="text" id="firstname"/>
<input type="text" id="lastname"/>
</div>
Inputs outside div:<br>
<input type="text" id="dob"/>
<div id="output" style="width:100%"></div>
In this piece of code I have used relatedTarget.
relatedTarget will provide the next focused element If next element is not the child of this div then it is div focus out.
Try this in your code.
I hope this will be helpful.
Thanks
JSFIDDLE LINK - Sample code

remove parent div if the input value is empty and show parent div if the input value is not empty?

I am trying to remove parent div if the input value is empty and show parent div if the input value is not empty?
the value of the input field is dynamic which means the value of it is the value of another input filed and I do this using javascript.
so far I haven't been able to show/hide the parent div for some reason. and I suspect the reason is because the value of the input field is dynamic which means the users are not typing anything in that input field. they are typing in another input filed and the value of the dynamic input field gets updated accordingly.
Here is what i have so far for show/hide the parent div:
HTML:
<div id="BOTTEXT2" class="secTxt">
<input type="text" class="sect2" id="sect2" style="border:none; background:none; " value="" size="12" readonly="readonly"/>
</div>
JAVASCRIPT:
<script type="text/javascript">
if(document.getElementById("sect2").value == ""){
document.getElementById("BOTTEXT2").style.display="block";
}
</script>
could someone please help me out with this?
Wrap your code in an event handler:
window.onload = function() {
var input = document.getElementById('sect2');
input.addEventListener('change', function() {
document.getElementById('BOTTEXT2').style.display = (input.value ? 'block' : 'none');
}, false);
};
This way, whenever you update the input, the div state changes accordingly.
I don't know if it will work for you, but follow the solution.
I created another input type out of main div to simulate the situation.
I used jQuery. After that, you can set your css of your way.
HTML
<div id="BOTTEXT2" class="secTxt">
<input type="text" class="sect2" id="sect2" style="border:none; background:none; " value="BSAU145D" size="12" readonly="readonly"/>
</div>
<input type="text" id="sect1">
Javascript (jQuery)
$(document).ready(function(){
$('#sect1').keyup(function(){
if($('#sect1').val() == 'test') {
$('#BOTTEXT2').css({'display':'none'});
} else {
$('#BOTTEXT2').css({'display':'block'});
}
});
});
Here is the fiddle

Using JQuery to display a hidden div with slideup and slidedown

I have made this form to let certain options appear when the user selects 'Yes' from my select form. I cannot get the div I have hidden to display at all, but I have used the Console and found that at least changing the select to yes does infact make my if statement run. I've ran a test and JQuery is working, but
Can anyone help me identify where I am going wrong?
<form method="post" action="quizcreatescript.php" name="quizcreateform" id="quizcreateform">
<select name="choosemarks" id="choosemarks">
<option value="noweights">No</option>
<option value="yesweights">Yes</option>
</select>
<!-- >This div is hidden until the user selects yes to add own marks<-->
<div class="hide" id="hiddendiv1"><!-- this select box will be hidden at first -->
<div class="input select">
<input type="text" name="quizcorrectaward" id="quizcorrectaward"><br>
<input type="text" name="quizincorrectaward" id="quizincorrectaward"><br>
</div>
</div>
<script type="text/javascript">
$("#choosemarks").change(function(){ // when #choosemarks changes
if ($(this).val() == "yesweights" ) { // if user selects to add own marks $(".hiddendiv1").slideDown("fast"); // if yes show the hidden div
}
else { $(".hiddendiv1").slideUp("fast"); //otherwise, hide the div again.
}
});
</script>
<input type="submit" name="createthequiz" id="createquiz" value="Create Quiz">
</form>
And the CSS form has
.hide {
display:none;
}
This:
$(".hiddendiv1")
does not select this element:
<div class="hide" id="hiddendiv1">
That would be this:
$("#hiddendiv1")
Use # for ID and . for classes, and it probably works ?
FIDDLE

Radio button and textbox

I am javascript learner and have been trying to do this
two radio buttons but1 but2
two text boxes box1 box2
What I need to do is
when but1 is selected, box1 should be editable and box2 should be readonly.
when but2 is selected, box2 should be editable and box1 should be readonly.
On page load both the text boxes should be readonly.
My code is as below
<style type="text/css">
.field-name {
color: #444;
font-family: verdana;
font-size: 0.85em;
line-height: 2em;
}
</style>
<script type="text/javascript">
function makeChoice() {
if (document.getElementById('but1').checked = true) {
document.getElementById('box2').readonly = true;
}
else if (document.getElementById('but2').checked = true) {
document.getElementById("box1").readonly = true;
}
}
</script>
<html>
<body>
<table>
<input type="radio" id="but1" name="vals" onclick="makeChoice()">
<input type="radio" id="but2" name="vals" onclick="makeChoice()">
<input type="text" id="box1" value="abcde">
<input type="text" id="box2" value="pqrst">
</table>
</body>
<html>
I do not want to disable the textboxes but make them readonly, so that on form submit i will have the textbox values that i can send to the server.
I do not know what mistake im doing here. Any help will be greatly appreciated. Thanks
You need to set the "readonly" attibute like this:
document.getElementById('box2').setAttribute('readonly','readonly')
and clear it like thisL
document.getElementById('box2').setAttribute('readonly','')
hope, this code would be of any help.
here is my try:
http://jsfiddle.net/ylokesh/AAAVp/1/
You're making a couple of mistakes.
First of all, your css and javascript code must be included into the <head> tag, which should be placed soon after <html>, before <body>.
Secondly your if statements are incorrect: with just one = sign you assign a value to a variable, you have to use two (or in this case three) of them to check the variables against a value, like this: if (something == value).
Lastly, you'd better use the functions setAttribute() and removeAttribute() to modify the values of the readonly attribute.
The complete code would be:
<html>
<head>
<style type="text/css">
.field-name {
color: #444;
font-family: verdana;
font-size: 0.85em;
line-height: 2em;
}
</style>
<script type="text/javascript">
function makeChoice() {
if (document.getElementById('but1').checked === true) {
document.getElementById('box2').setAttribute('readonly','readonly');
document.getElementById('box1').removeAttribute('readonly','');
}
else if (document.getElementById('but2').checked === true) {
document.getElementById('box1').setAttribute('readonly','readonly');
document.getElementById('box2').removeAttribute('readonly','');
}
}
</script>
</head>
<body>
<table>
<input type="radio" id="but1" name="vals" onclick="makeChoice()">
<input type="radio" id="but2" name="vals" onclick="makeChoice()">
<input type="text" id="box1" value="abcde">
<input type="text" id="box2" value="pqrst">
</table>
</body>
<html>
Basically, you're using = instead of == on your conditionals. Also, you always have to set readonly to false on the one of the boxes, or you'll end up with two readonly boxes after two clicks. Try this:
EDIT the attribute name is readOnly, not readonly. Code also edited to manipulate the attribute directly, instead of using setAttribute. See working version on jsfiddle:
function makeChoice() {
document.getElementById('box1').readOnly = document.getElementById('but2').checked
document.getElementById('box2').readOnly = document.getElementById('but1').checked
}
In your IF statements, you are setting a variable, not testing whether it is in one state or another. You need to use this:
if (document.getElementById('but1').checked == true) {
Note that there are two equals signs. This checks whether the two are the same. Basically, one equals sets, two equals compares. Of course change both IF statements to the two equals signs.
Also, you say that onload both should be readonly. To do this, add
readonly="readonly"
to the textboxes. And furthermore, you need to turn readonly off on the appropriate textbox when a radio button is clicked.
So, altogether:
<style type="text/css">
.field-name {
color: #444;
font-family: verdana;
font-size: 0.85em;
line-height: 2em;
}
</style>
<script type="text/javascript">
function makeChoice() {
if (document.getElementById('but1').checked) {
document.getElementById('box2').setAttribute('readOnly','readonly');
document.getElementById('box1').removeAttribute('readOnly','');
} else if (document.getElementById('but2').checked) {
document.getElementById('box1').setAttribute('readOnly','readonly');
document.getElementById('box2').removeAttribute('readOnly','');
}
}
</script>
<html>
<body>
<table>
<input type="radio" id="but1" name="vals" onclick="makeChoice()">
<input type="radio" id="but2" name="vals" onclick="makeChoice()">
<input type="text" id="box1" value="abcde" readonly="readonly">
<input type="text" id="box2" value="pqrst" readonly="readonly">
</table>
</body>
<html>

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