Develop Reference

jquery get value of specific number inputs in while loop [closed]

Closed. This question needs to be more focused. It is not currently accepting answers.
Want to improve this question? Update the question so it focuses on one problem only by editing this post.
Closed last month.
Improve this question
what the result looks like
I'm making a product inventory system; where I can simple change the value with number inputs, hit the checkmark, and be done. But I'm having trouble getting the specific value.
php:
<?php
$get_prod = $con->query("SELECT * FROM products");
while($get = mysqli_fetch_array($get_prod)){
echo '
<div class="prod-inv">
<div class="prod-inv-top">
<h1>'.$get['prod_name'].'</h1>
<h2>'.$get['prod_price'].'</h2>
</div>
<div class="prod-inv-body">
<img class="image-manage" src="'.$get['prod_cover'].'">
<input id="'.$get['prod_id'].'" type="number" class="num" value="1"/>
<button id="'.$get['prod_name'].'" class="btn search">✓</button></a>
</div>
</div>';
}
?>
jquery:
<script type="text/javascript">
$("button").click(function() {
var target = this.id;
var value = $(target).val();;
alert(value);
});
</script>
I've tried everything from form GET, to href links, now jquery. So far nothing has yelded results.

[1] Firstly, I'm not familiar with PHP, but it seems that closing anchor tag mistakenly presents in the markup:
<button id="'.$get['prod_name'].'" class="btn search">✓</button></a>
Or maybe opening anchor tag is missing...
[2] Secondly, in following line:
var target = this.id;
context "this" is currently clicked button, this code takes clicked button id and then in this line:
$(target)
you're taking currently clicked button DOM element by it's id, but it is already stored in "this"
[3] when you want to query element by id, you have to prepend it with hash "#":
$('#' + target)
So, you see the issue, when button is clicked, you take it's id, then find this button on the page again by it's id and then try to take .val() from a button (which actually does not have a value, it is not an input)
Suppose, you wanted to achieve following:
button is clicked -> find input near this button -> take value of this input
$('button').click(function () {
var value = $(this).closest('.prod-inv-body').find('input').val();
console.log(value);
});

how can i make an html list in jquery or javascript? [closed]

Closed. This question needs to be more focused. It is not currently accepting answers.
Want to improve this question? Update the question so it focuses on one problem only by editing this post.
Closed 5 years ago.
Improve this question
I want to make a list in HTML and then the user selects the list and then do something with the selections.
For example. List of fruits. Apple bannana, grapes.
User selects grapes and if grapes is selected asked how many grapes?
I would like to know how i can do this in Javascript or Jquery

Use this code block. As simple as that,
//generates the list
var items = 'Apple, bannana, grapes';
var nHtml = '';
items = items.split(',');
items.forEach(function(v){
//trim() will remove the blank spaces
nHtml+='<li>'+ v.trim() +'</li>';
});
$('#itemList').append('<ul>'+ nHtml +'</ul>');
//detect click on the list item
$('li').click(function(){
var name = $(this).text();
var question = 'How many '+name+' ?';
$('#question').html('<span>'+ question +'</span><input type="text" id="answer" />')
});
//get the number feed into the text box
function getCount(){
var answer = $('#answer').val();
console.log(answer);
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id='itemList'></div>
<div id='question'></div>
<button onclick='getCount()'>Get Count</button>

Change CSS when the current URL contains a certain string [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 6 years ago.
Improve this question
I used this function for checking the url
<script type="text/javascript">
$(document).ready(function () {
if (window.location.href.indexOf("franky") > -1) {
/* some code to change the css */;
}
});
</script>
Currently it only works when I refresh the page.
Is there a way to make it work when url change without any refresh ? Thanks
EXAMPLE : its like you have to choose a color , you click on a button to select your color , it make example.com/color.html#/red ; example.com/color.html#/blue ; example.com/color.html#/black only the color change with no refresh and i want to add specific css when url contain each string color

black
blue
<script type="text/javascript">
$(window).on('hashchange', function(e){
var origEvent = e.originalEvent;
resultdata = origEvent.newURL;
var black = resultdata.match(/black/);
if (black){
console.log(black);
}
});
</script>

Flickering HTML Form button radio Javascript true/false [closed]

Closed. This question needs to be more focused. It is not currently accepting answers.
Want to improve this question? Update the question so it focuses on one problem only by editing this post.
Closed 6 years ago.
Improve this question
I would like to make a button which I can put on "true/false" on a certain time with javascript. I want to make a flickering button. How could I do this in Javascript?
I tried something like this:
<td colspan="1" class="button" tabindex="1">
<input type="radio" tabindex="-1">
</td>
__
setTimeout(function() {
$("*[tabindex='1']").find('input').get(0).checked = true;
http://www.w3schools.com/html/tryit.asp?filename=tryhtml_form_radio
(This button)

This checks/unchecks the button randomly and you can certainly change the logic behind when the button should be on vs. off, but it shows how to check and uncheck the radio button natively (no JQuery) with the addition or removal of the checked attribute on the Radio Button.
var btn = document.getElementById("rad");
setInterval(function(){
var rnd = Math.random();
console.log(rnd);
rnd > .5 ? btn.setAttribute("checked", "checked") : btn.removeAttribute("checked");
}, 500);
<input id="rad" type="radio">

Your code will work if you put the <td> element inside <table> tags.
If the <td> is outside of a table element, it is removed so you cannot access the radio button by searching for the parent td.
To make the button flicker, try having the function reset itself:
function buttonOnAfterDelay()
{
var $radioButton = $("*[tabindex='1']").find('input').get(0);
if ($radioButton.checked)
$radioButton.checked = false;
else $radioButton.checked = true;
setTimeout(function() {buttonOnAfterDelay()}, 1000);
}
buttonOnAfterDelay();

I don't understand the concept of this function in Javascript [closed]

Closed. This question needs to be more focused. It is not currently accepting answers.
Want to improve this question? Update the question so it focuses on one problem only by editing this post.
Closed 6 years ago.
Improve this question
for example, you would have
<input id="searchbox" type="text" value="Type Here..." />
<button id="clickbait">Click Me</button>
<div id="emptydiv">sda</div>
<script type="text/javascript">
var clickthis="clickbait";
var searchinput=document.getElementById("searchbox").value;
var generate="emptydiv";
document.getElementById(clickthis).onclick=function () {
searchinput=document.getElementById("searchbox").value;
document.getElementById(generate).innerHTML=searchinput;
}
</script>
So this is pretty much just something to change the text in the empty div to whatever is in the text field when you click on the button but I don't understand the "idea" of what's going on here. I already set the var to a value so why do you need to grab the value again?
I can understand the other basics so far like document(refers to the whole page) then getelementbyid(refers to the element) and then on the click you want it to perform a function but everything after that is confusing.

I already set the var to a value so why do you need to grab the value
again?
When you set the searchinput value first before the onclick assignment, you fetched and assigned the value of searchinput at that time.
Inside the click event handler, you are getting the value in searchinput when the div is clicked so the value at that time might be different.

When its firing click event then searchinput=document.getElementById("searchbox").value;
that means searachinput is what everever typed in the input feild
and then that value is being reassigned to
document.getElementById(generate).innerHTML=searchinput;

`
When the button is clicked fire the event:
document.getElementById(clickthis).onclick=function ()
Get the value of 'searchBox':
searchinput=document.getElementById("searchbox").value;
Assign what ever was in the 'searchBox' as HTML in 'emptyDiv'
document.getElementById(generate).innerHTML=searchinput;
Just to note that:
searchinput=document.getElementById("searchbox").value;
Is actually redundant because you are already declaring it with the other vars.
So your code should look like this:
document.getElementById('clickbait').onclick=function () {
var searchinput = document.getElementById("searchbox").value;
document.getElementById('emptydiv).innerHTML=searchinput;
}
Or to make it even simpler and cut it down to 2 lines you could even use jQuery:
$('#clickbait').on('click', function(){
$('#emptydiv').innerHTML = $('#searchbox').value;
}

It copies the value of input into the "emptydiv" div when you click on the button.
Why is the real good question, here, IMO.