How you can get file name from file input in Javascript?
In the ever-evolving realm of web development, crafting applications that transcend the boundaries of different browsers is a perpetual challenge. Despite its diminishing user base, Internet Explorer persists, requiring developers to navigate its unique intricacies.
This blog will share some insights to you like how to get the fileName in JavaScript from Input File Tag in Internet Explorer.
As we embark on this journey, our goal is to provide developers with a comprehensive understanding of how to seamlessly handle file inputs, ensuring compatibility not only with modern browsers but also with the legacy landscape of Internet Explorer.
By unraveling the complexities of browser compatibility, we empower developers to create web applications that offer a cohesive and user-friendly experience across the diverse spectrum of browsing environments.
Let’s embark on this exploration to master the challenges posed by file input in Internet Explorer.
Get the filename in Javascript from input file tag in Internet Explorer
Step 1: Create the HTML File Input Element
To get started, you need an HTML file input element where users can select a file. Here’s an example:
<input type=”file” id=”fileInput” onchange=”getFileName()”>
The `onchange` attribute triggers the JavaScript function `getFileName()` whenever a file is selected.
Step 2: JavaScript Function for Internet Explorer
Internet Explorer has its own way of handling file inputs, and the File API used by modern browsers is not fully supported. Here’s a JavaScript function to extract the file name in IE:
function getFileName() {
var fileInput = document.getElementById(‘fileInput’);
var fileName = ”;// Check if the browser is Internet Explorer
if (navigator.appName == ‘Microsoft Internet Explorer’) {
// Use ActiveXObject for IE
var filePath = fileInput.value;
var startIndex = (filePath.indexOf(‘\\’) >= 0 ? filePath.lastIndexOf(‘\\’) : filePath.lastIndexOf(‘/’));
fileName = filePath.substring(startIndex);
if (fileName.indexOf(‘\\’) === 0 || fileName.indexOf(‘/’) === 0) {
fileName = fileName.substring(1);
}
} else {
// For other browsers, use the standard File API
fileName = fileInput.files[0].name;
}// Display the file name
alert(‘Selected file: ‘ + fileName);
}
This function checks if the browser is Internet Explorer using `navigator.appName` and then uses `ActiveXObject` to extract the file name. For other browsers, it relies on the standard File API.
Conclusion:
Ensuring compatibility with Internet Explorer is still a consideration for web developers, especially when dealing with file inputs. By incorporating the provided JavaScript function by Hire tech firms, you can get the filename in Javascript from input file tag in Internet Explorer.
Remember to test your implementation across multiple browsers to guarantee a smooth user experience for everyone.