hey there i'm making a simple webpage which requires to download an output image file at the last step.. but i don't know how can i add download button dynamically at correct time, because at starting of a page there is no need of download button..
so i have main.js file: which looks something looks like this:
let img_code=document.getElementById('img_code');
let textbox=document.getElementById('textbox');
let gen_button_img=document.getElementById("img_button");
gen_button_qr.addEventListener("click",()=>
{
var trailer=textbox.value;
var url='www.example.com';
var result= url.concat(trailer);
if (navigator.onLine)
{
if(trailer.length<=1725 && trailer.length>0)
{
if((trailer !="0")&& (trailer.replace(/\s/g, '').length))
{
image_code.src=result;
alert("Image Generated successfully");
/**/
}
else
{
alert("You cannot create this file spaces only or only with single 0");
}
}
else
{
alert("Maximum charecter limit is exceeded!! ");
}
}
else
{
alert("No Internet Connection");
}
});
So, i have the question is there any way to dynamically add the button which takes file URL as input and download that file through web browser's downloader?
Note=> I can easily save the result by right click on the picture and save image option; but i want to add an extra button to download the same file.
// arrow function to create and append download button into any element
// it only takes url of file that will download.
const createBtn = (URL) => {
// create button element
const downloadBtn = document.createElement("button");
// you can set any name of id according to your choice
downloadBtn.setAttribute("id", "downloadBtn");
// create anchor element
const downloadLink = document.createElement("a");
// set any thing in inner text
downloadBtn.innerText = "Download Image";
// set download attribute to true
downloadLink.setAttribute("download", true);
// set url with URL
downloadLink.setAttribute("href", URL);
// append button element into anchor element
downloadLink.appendChild(downloadBtn);
// get that element in which download button will append
const container = document.getElementById("container");
// append download button into any element of your choice
container.appendChild(downloadLink);
};
// url of file
const URL = "https://images.pexels.com/photos/863963/pexels-photo-863963.jpeg?cs=srgb&dl=pexels-blaque-x-863963.jpg&fm=jpg"
// call createBtn function with URL
createBtn(URL);<!-- The element in which download button will be appended -->
<div class="container" id="container"></div>I am not 100% sure that this will work! It also not work in stack snippet because iframe tag. Try to use it locally.