This is crazy but I don't know how to do this, and because of how common the words are, it's hard to find what I need on search engines. I'm thinking this should be an easy one to answer.
I want a simple file download, that would do the same as this:
Download!
But I want to use an HTML button, e.g. either of these:
<input type="button" value="Download!">
<button>Download!</button>
Likewise, is it possible to trigger a simple download via JavaScript?
$("#fileRequest").click(function(){ /* code to download? */ });
I'm definitely not looking for a way to create an anchor that looks like a button, use any back-end scripts, or mess with server headers or mime types.
You can trigger a download with the HTML5 download attribute.
Download
Where:
path_to_file is a path that resolves to an URL on the same origin. That means the page and the file must share the same domain, subdomain, protocol (HTTP vs. HTTPS), and port (if specified). Exceptions are blob: and data: (which always work), and file: (which never works).
proposed_file_name is the filename to save to. If it is blank, the browser defaults to the file's name.
Documentation: MDN, HTML Standard on downloading, HTML Standard on download, CanIUse
For the button you can do
<form method="get" action="file.doc">
<button type="submit">Download!</button>
</form>
HTML:
<button type="submit" onclick="window.open('file.doc')">Download!</button>
A simple JS solution:
function download(url) {
const a = document.createElement('a')
a.href = url
a.download = url.split('/').pop()
document.body.appendChild(a)
a.click()
document.body.removeChild(a)
}
With jQuery:
$("#fileRequest").click(function() {
// hope the server sets Content-Disposition: attachment!
window.location = 'file.doc';
});
You can do it with "trick" with invisible iframe. When you set "src" to it, browser reacts as if you would click a link with the same "href". As opposite to solution with form, it enables you to embed additional logic, for example activating download after timeout, when some conditions are met etc.
It is also very silient, there's no blinking new window/tab like when using window.open.
HTML:
<iframe id="invisible" style="display:none;"></iframe>
Javascript:
function download() {
var iframe = document.getElementById('invisible');
iframe.src = "file.doc";
}
Bootstrap Version
<a class="btn btn-danger" role="button" href="path_to_file"
download="proposed_file_name">
Download
</a>
Documented in Bootstrap 4 docs, and works in Bootstrap 3 as well.
I think this is the solution you were looking for
<button type="submit" onclick="window.location.href='file.doc'">Download!</button>
I hade a case where my Javascript generated a CSV file. Since there is no remote URL to download it I use the following implementation.
downloadCSV: function(data){
var MIME_TYPE = "text/csv";
var blob = new Blob([data], {type: MIME_TYPE});
window.location.href = window.URL.createObjectURL(blob);
}
You can hide the download link and make the button click it.
<button onclick="document.getElementById('link').click()">Download!</button>
<a id="link" href="file.doc" download hidden></a>
What about:
<input type="button" value="Download Now!" onclick="window.location = 'file.doc';">
In my testing the following works for all file types and browsers as long as you use a relative link:
<button>Download 2</button>
/assets/hello.txt is just a relative path on my site. Change it to your own relative path.
my_file.txt is the name you want the file to be called when it is downloaded.
Explanation
I noticed there were comments under a lot of the answers that said the browser would just try to open the file itself rather than downloading it depending on the file type. I discovered this to be true.
I made two buttons to test it out using two different methods:
<button onclick="window.location.href='/assets/hello.txt';">Download 1</button>
<button>Download 2</button>
Notes:
Button 1 opened the text file in a new browser tab. However, Button 1 would download the file for file types that it couldn't open itself (for example, .apk files).
Button 2 downloaded the text file. However, Button 2 only downloaded the file if the path was relative. When I changed the path to an absolute path, then the browser opened it in a new tab.
I tested this on Firefox, Safari, and Chrome.
Hello I just include the word 'download' and works well.
<a href="file.pdf" download>Download</a>
So in javascript you can use the follow:
function onStartedDownload(id) {
console.log(`Started downloading: ${id}`);
}
function onFailed(error) {
console.log(`Download failed: ${error}`);
}
var downloadUrl = "https://example.org/image.png";
var downloading = browser.downloads.download({
url : downloadUrl,
filename : 'my-image-again.png',
conflictAction : 'uniquify'
});
downloading.then(onStartedDownload, onFailed);
If your looking for a vanilla JavaScript (no jQuery) solution and without using the HTML5 attribute you could try this.
const download = document.getElementById("fileRequest");
download.addEventListener('click', request);
function request() {
window.location = 'document.docx';
}
.dwnld-cta {
border-radius: 15px 15px;
width: 100px;
line-height: 22px
}
<h1>Download File</h1>
<button id="fileRequest" class="dwnld-cta">Download</button>
<button>Download!</button>
This will download the file as .doc file extension is not supported to be opened in browser.
One of the simplest way for button and the text-decoration will help to alter or to remove the text decoration of the link.
Anywhere between your <body> and </body> tags, put in a button using the below code:
<button>
<a href="file.doc" download>Click to Download!</a>
</button>
This is sure to work!
all you need to do is add Download after the file name which you have entered:
Before:
Download!
After
<a href="file.doc" Download >Download!</a>
Make sure the download is written with a capital letter otherwise it's not gonna work.
This is what finally worked for me since the file to be downloaded was determined when the page is loaded.
JS to update the form's action attribute:
function setFormAction() {
document.getElementById("myDownloadButtonForm").action = //some code to get the filename;
}
Calling JS to update the form's action attribute:
<body onLoad="setFormAction();">
Form tag with the submit button:
<form method="get" id="myDownloadButtonForm" action="">
Click to open document:
<button type="submit">Open Document</button>
</form>
The following did NOT work:
<form method="get" id="myDownloadButtonForm" action="javascript:someFunctionToReturnFileName();">
If you can't use form, another approach with downloadjs fit nice. Downloadjs use blob and html 5 file API under the hood:
<div onClick=(()=>{downloadjs(url, filename)})/>
*it's jsx/react syntax, but can be used in pure html
Not really an answer to the original question but it may help others which face similar situations as myself.
If the file you want to download is not hosted on the same origin but you want to be able to download it, you can do that with the Content-Disposition header. Make sure the server includes the header when responding to requests of the file.
Setting a value like
Content-Disposition: attachment will ensure that the file will be downloaded instead of viewed in the browser.
A simple Download pointing to your file should download it in this case.
If you want
Download
for the ability to download files that would be rendered by the browser otherwise, But still want a neat javascript function to use in a button; you can have an invisible link in html and click it in javascript.
function download_file() {
document.getElementById("my_download").click()
}
<a id="my_download" href="path_to_file" download="file_name" style="display:none;"></a>
<button onClick="download_file()">Download!!!</button>
Another way of doing in case you have a complex URL such as file.doc?foo=bar&jon=doe is to add hidden field inside the form
<form method="get" action="file.doc">
<input type="hidden" name="foo" value="bar" />
<input type="hidden" name="john" value="doe" />
<button type="submit">Download Now</button>
</form>
inspired on #Cfreak answer which is not complete
The solution I have come up with is that you can use download attribute in anchor tag but it will only work if your html file is on the server. but you may have a question like while designing a simple html page how can we check that for that you can use VS code live server or bracket live server and you will see your download attribute will work but if you will try to open it simply by just double clicking html page it open the file instead of downloading it.
conclusion: attribute download in anchor tag only works if your html file is no server.
For me ading button instead of anchor text works really well.
<button>Download!</button>
It might not be ok by most rules, but it looks pretty good.
If you use the <a> tag, do not forget to use the entire url which leads to the file -- i.e.:
Download
I have a table where several names are their own links and once clicked, it redirects to my landing page.
<span>{{ link.linktitle }}</span>
That part works fine.
However, I need the url to look like this once redirect to the landing page:
http://localhost:3000/#/landing/?=link={link title}
Is there a simple way to achieve this?
PS. I also need to grab the link title from the query param and have it display somewhere on the landing page.
Thanks!
If the value you want to have is stored in the JS side under link.linktitle, your code has to look like this:
<a href="#/landing/?=link={{ link.linktitle }}">
<span>{{ link.linktitle }}</span>
</a>
I cloned the ionic project from GitHub
While the contact's phone number is not clickable to call and message. So for the index.html file line 39, I converted from
<p ng-if="contact.emails.length > 0">{{contact.emails[0].type}} : {{contact.emails[0].value}}</p>
to
<p ng-if="contact.phones.length > 0">{{contact.phones[0].type}} : <a ng-href='{{contact.phones[0].value}}'>{{contact.phones[0].value}}</a></p>
But it turns out the app will not load any contact's information anymore.
Is there anything I missed or am I totally wrong on sending data?
to make phone call with ionic you need to add this code in confi.xml
<access launch-external="yes" origin="tel:*" />
and in your view you need to add:
<a ng-href=tel:{{user.phoneNumber}} class="button button-positive">Call me</a>
Update:
I've just noticed it's (probably) an issue with loading data not the link itself. Would need to see your controller code to know more about why it's not populating the ng-href if it's not the issue below...
Previously:
Using the following href should be enough to trigger a call:
tel:' + number
Angular (which ionic sits on) doesn't like anything unusual going into an anchors href unless you tell it you want it to. See here:
http://forum.ionicframework.com/t/ng-href-tel-redirecting-to-call-with-empty-number/4567/2
The quickest fix, if you 'just' want it to work is this in your view:
<p ng-if="contact.phones.length > 0">{{contact.phones[0].type}} : {{contact.phones[0].value}}</p>
and then in your controller:
$scope.triggerCall = function(number){
document.location.href = 'tel:' + number
}
I am using html javascript to share a link on facebook.
I am using this code:
<a href="javascript:"onclick="window.open('https://www.facebook.com/sharer/sharer.php?u=test.com');" target="_blank">
Share on Facebook
Now i want to replace test.com with the current url link in the browser .
How to do it !
You can use window.location or window.location.href which provides the current URL. In your example, you can use something like the following:
<a href="javascript:" onclick="window.open('https://www.facebook.com/sharer/sharer.php?u=' + window.location);" target="_blank">
For more information see Window.location on Mozilla.org which has the following description:
The Window.location read-only property returns a Location object with information about the current location of the document.
Though Window.location is a read-only Location object, you can also assign a DOMString to it. This means that you can work with location as if it were a string in most cases: location = 'http://www.example.com' is a synonym of location.href = 'http://www.example.com'.
I believe it should work if you use window.location.href, so your code would be the following:
<a href="javascript:"onclick="window.open('https://www.facebook.com/sharer/sharer.php?u=' + window.location.href);" target="_blank">
window.location.href will get the current url e.g.
window.open('https://www.facebook.com/sharer/sharer.php?u=' + window.location.href);
I am facing problem in a project: When I press submit, I want to go to two different urls: one from blank and one direct here.
How can I resolve this problem?
My code:
<form method="post" action="" name="form" target="_blank">
function addAmount($invoice_number,$particular,$quantity,$rate,$percentile,$amount){
$addAmm=$this->conn->prepare("insert into `amount`(invoice_number,particular,quantity,rate,tax,amount)values(?,?,?,?,?,?);");
$addAmm->bind_param("isssss",$invoice_number,$particular,$quantity,$rate,$percentile,$amount);
$addAmm->execute();
header('loaction:add_info_success.php');
//header('loaction:printpdf.php'); error face
}
I want to print pdf and swith current page to iformation page.
In PHP, you can't set two different Location headers (you have a typo in your code by the way). If you need to achieve something similar to what you want, you have to handle form by JavaScript and open two different windows with window.open (manual).
it is possible to open multiple URL's if you combine PHP with js. But i am not sure if it's a good way to implement it. It can lead to confusion at the user. My suggestion is to add a direct download link at the success page. But if you want to go this way, you can use the next in PHP.
<?php
$urls = 'window.open("add_info_success.php");window.open("printpdf.php");';
?>
<script language="javascript" type="text/javascript">
function openURLs() {
<?php echo $urls; ?>
}
window.onload = openURLs;
</script>
If you have more URLs, you can simply use a loop and add each url's in the windows.open() method.
Use
header('location:printpdf.php');
inside 'add_info_success.php'