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
Hello my Wonderful Developers, I need help on this
Let say my website is https://nkiri.pw/ and I want to click on a button or Link, I want my current page to be replace by this page https://itinerarycarter.com/qm37kgvszd?key=7f255a06003c7158485ad05f1e9672f3 and my present page should open another page automatically. How can I achieve this successfully ?
I was able to solve it by doing this:
<a role="button" id='mike' href="<?php echo "https://".$_SERVER['SERVER_NAME']."/" ?>" target="_blank" class="btn btn-primary">Primary</a>
<script>let linkElement = document.getElementById("mike"); linkElement.addEventListener("click", openNew);function openNew() {window.open("https://itinerarycarter.com/h9xdx19n?key=2053deb616c8b3ac8566b44a8ec7c092", "_self");}</script>
You are using a hyperlink. So you have a href="" in your html tag. You can also set the target (where the page should be opened) to _blank. This means, that the page will be opened in another tab. So if you write it like this:
href="https://nkiri.pw/" target="_blank"
It will open your current page in another tab. Then you can open the new page with js.
let linkElement = Document.getElementById("yourIdOfTheLinkElement");
linkElement.addEventListener(function() {
window.open("https://itinerarycarter.com/qm37kgvszd?key=7f255a06003c7158485ad05f1e9672f3", "_self");
});
I have the following bookmarklet:
javascript:findlink=document.getElementsByClassName(%22download_link%22)[2].href;window.open('https://myfiledrive.com/users/files/add?url='+findlink,'_blank');void(0);
Example:
<a class="download_link" href="example.com/pdf1.pdf">
<a class="download_link" href="example.com/pdf2.pdf">
<a class="download_link" href="example.com/pdf3.pdf">
Basically, it searches the currently active page, for the third iteration of an tag with the class "download_link", and stores it in the variable "findink",
Then it loads 'https://myfiledrive.com/users/files/add?url='+findlink
In the above example it should load:
https://myfiledrive.com/users/files/add?url=example.com/pdf3.pdf
but what ends up happening is that this gets loaded:
https://myfiledrive.com/users/files/add?url=example.com/pdf3.pdf?url=example.com/pdf3.pdf
so basically it's duplicating url=
What am I doing wrong? Thanks.
The url param shouldn't be duplicated. You're not appending to findlink or anything. You can try the snippet below, it's exactly as you've posted.
Chrome will block the popup, but if you read the error message, there's no duplication going on:
Blocked opening 'https://myfiledrive.com/users/files/add?url=https://stacksnippets.net/example.com/pdf3.pdf' in a new window because the request was made in a sandboxed frame whose 'allow-popups' permission is not set.
url is only in there once no matter how many times I click.
<a class="download_link" href="example.com/pdf1.pdf">1</a>
<a class="download_link" href="example.com/pdf2.pdf">2</a>
<a class="download_link" href="example.com/pdf3.pdf">3</a>
download
I have this code
<div class="wrap-box-video" id="31">
<div class="addfav">
</div>
<img src="/etc.jpg" />
</div>
and with this code
$(document).ready(function(){
$("div.addfav").click(function(e){
window.location = "?wpfpaction=add&postid=" + $(this).parents(".wrap-box-video").attr("id");
});
});
i want to load the ?wpfpaction=add&postid=31 (in this exemple) but not to show in the url tab i want this to be underground. if i'm on exemple.com page and i click the addfav div i want the exemple.com to be the same but the script to work.
If you're talking about changing what text appears in the browser tab, you can alter the title element of the HTML rendered at you ?wpfaction endpoint.
If you want to change what the actual URL that appears in the URL bar, see Modify the URL without reloading the page
A client has a site where video content is populated by AJAX from a video CDN. Each link is built like so:
<a class="thumb-link" href="/?video='.$video->id.'" onclick="show_video('.$video->id.', \''.$section.'\'); return false;"><img src="'.$thumb.'" width="100" height="65" alt="" align="left" /></a>
But they report that analytics is not tracking the href, since the onclick is telling a Flash player to load the content via javascript instead of go to a page and load the video.
What can I do (without going to a physical page) to track this click as if they clicked through to a page?
Can I add to the onclick and do something like:
http://code.google.com/apis/analytics/docs/gaJS/gaJSApiBasicConfiguration.html#_gat.GA_Tracker_._trackPageview
Add to the anchor: onclick="trackVideo();"
Then, with javascript:
function trackVideo() {
path = $(this).attr("href");
var pageTracker = _gat._getTracker("UA-XXXXX-XX");
pageTracker._trackPageview(path);
}
I am not too familiar with Analytics, so if someone could get me in the right direction that would be great.
Your example is correct. That would do exactly what you want :)