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This is probably a simple question, but I'm struggling with this.
Basically, how to browse in a database, as the user is typing something?
For example, in a website such as https://www.doesthedogdie.com/, how do they do it to show all the movies beggining with the string of characters you're typing, as you're typing it?
I guess javascript is involved?
It's called autocomplete
Please do some googling next time yourself.
You can use jQuery autocomplete or Bootstrap typeahead to achieve this.
Hope this helps
My personal preference on how to make these kind of systems is fairly awkward, yet it seems to work just fine for me without requiring too much client-side scripting.I use ASP.NET's Page_Load event to save all content in a SQL database into an XML file. Then, when the user enters some text into the field, I make a hidden div class underneath it unhidden to display filtered results from the XML document. This way, you can update the SQL database at any time fairly simply to add new records which should be listed on the website.This is server-side scripting, which I prefer to client-side because the user can disable features and mess around with it to view your code which is something I personally hate.I hope this helps you somewhat.
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hey guys I'm totally new to programing and I need your help to walk me through this .
lets say we have 2 users that want to communicate through HTML forms
The first users fills out a html form ( first name , last name , age etc ... ) and submits it .
The second user receives the form without being able to apply any modifications to it and then submits back to the first user as either approved or disapproved ( by ticking a radio button )
all of this has to happen in Real Time.
can somebody please explain to me how it works ? Is it done with Ajax ?
what should i research ?
You should look into Web Sockets, this is how you can accomplish the functionality you would like. Here is a link to some information on web sockets and it has a few different libraries that implement and abstract web socket to make it easier to use:
https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API
If you develop in Visual Studio with .NET, then you can check out Microsoft's SignalR library. It makes WebSocket coding easy:
http://www.asp.net/signalr
If you are wanting to stay away from WebSockets completely, then you would be looking to use AJAX and "Long Polling". here is a good SO post on this:
how does long polling work javascript?
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I'm (trying) to build an app based on boostrap/javascript/ and a nosql DB
a sort of small CRM/invoicing system
i need to show/hide button based on variable
for example for a quote, status could be "open", "lost" "win"
so on my quote details page when status of quote is open i want to show button
- win (who change status of quote id in db to win and copy quote to an order)
- lost (who change status of quote id in db)
but i want to hide button "Re-open" who change a cancel status to open
and so on for my different status..
so want i'm looking for is a way to collapse/hide some button depending of the status of my quote (i put the status of my quote in a variable called quoteStatus)
any suggestion will be welcome
thanks
jeebee
You can do something like that
if (quoteStatus==="value"){
document.getElementById("buttonId").style.display='none';
}
else{
document.getElementById("button").style.display='block';
}
this is just javascript, you could use jquery it will make it easier for you, so your code may look like that
if (quoteStatus==="value"){
$("#buttonId").hide();
}
else{
$("#buttonId").show();
}
To get more positive reactions to your question you have to show some research effort. This question is not useful in that mather that you havent actually showed us what you have tried, and the purpose of your functionality have possibly been asked and explained before? How to hide/show div based on variable using javascript. A div and a button is both elements.
Either way, as for your question, we need to know what you already have. The task in itself have several ways to be accomplished, and based on your existing code there could be a way to complete this task in a more correct manner than others.
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I've recently created a few piano keys using HTML, CSS and some Javascript and I would like to know how to go about creating a password that only unlocks when certain keys are played in a specific order.
I imagine the code would go something like:
if (correct sequence of keys are input) {
unlocks secret content;
}else{
message: try again!;
}
I've never made a password lock of any kind and I'm not sure what language would be idea for a password... Ideally it would word in browsers and on phones. I'm really new to javascript and I know that people can easily see your code so I guess I can't really use that because people would look for the password. Any ideas/guidance would be greatly appreciated!
If you don't want users to see the login credentials, you'll need to include some server side code with PHP, or ASP.NET for example so that the check is done on the server and not in the users browser.
But otherwise it would be fairly simple to do this piano key check by making each click on the buttons add a new character to a string.
var pw="";
document.getElementById('key1').onclick=function(){pw +="x"};
And then just do a standard check on that string to a saved password.
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Is there any possibility to save a DIV, that has contenteditable="true", to a MySQL Table? I need to use PHP for this (and JS as a "helper").
I though of doing something like this:
Putting a button on the site that copies the content of the contentEditableDIV to a formDIV (a DIV that is in a form with method="POST" action="send_to_mysql.php").
The button is supposed to auto-trigger the submit button/function at the same time.
But is there any other, more convenient way? I am quite a beginner in MySQL, so I couln't think of any other way yet.
I appreciate any kind of help or response.
With best regards,
Dave
Conceptually...
//contenteditable element
//read element with JS
//URIencode to PHP via JS/AJAX
//Send to database with PHP/PDO
You're in for a real can of worms if you want this to work well. Especially if you want this to work well AND be able to accept pasted content from MS Word.
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I know the Title is a little obscure, but I will try to explain my best. Since OS X Lion the login screen of the Macs presents a row of images of the available users. Once you click one of those images, the rest disappear, centering the clicked one and revealing a password field.
I want to do a similar thing in a web-app. I have a few users, and I want them to click on their image to reveal the password field.
I searched for similar options, but can't find anything, and I don't even know how to proceed. I guess JQuery or Javascript would be necessary, but those I know little to nothing (HTML & CSS shouldn't be a problem, but well, I don't even know how to start this simple thing... )
Thanks!
Google is your friend... no matter how much the NSA are watching. Use it to search for tutorials, these are the best way to learn. Mostly CSS will be needed to make it look like the OSX login screen... maybe a bit of jQuery.
Within in seconds I found this page of many examples of login forms. And then I found this one that looks very similar to an OSX login page.