Extract the file name from a URL using Vue

Question

Extract the file name from a URL using Vue

I have a URL for a file that I need to display to users after slicing. Initially, I successfully sliced the URL using substring, but now I face an issue with varying numbers in the string to be sliced. For example, if the URL is /media/users/3/sample.docx, I only want to show sample.docx. My current approach involves using substring at a fixed position (15), but what if the number before "sample.docx" changes? How can I improve this method?

sliceString(value) {
    return value.substring(15)
}

{{sliceString(data.file)}}

javascript vue.js ecmascript-6 vuejs2 vue-component

Answer 1

Answer №1

Find the final occurrence of /, add 1 to it, and utilize it in the substring function :

extractString(value) {
    let lastSlashIndex = value.lastIndexOf('/')
    return value.substring(lastSlashIndex + 1)
}

For example:

let website = 'example.com/documents/report.pdf'

let finalIndex= website.lastIndexOf('/');

console.log(website.substring(finalIndex + 1))

Answer 2

Find the final occurrence of /, add 1 to it, and utilize it in the substring function :

extractString(value) {
    let lastSlashIndex = value.lastIndexOf('/')
    return value.substring(lastSlashIndex + 1)
}

For example:

let website = 'example.com/documents/report.pdf'

let finalIndex= website.lastIndexOf('/');

console.log(website.substring(finalIndex + 1))

Answer 3

Answer №2

Consider utilizing value.lastIndexOf()

 extractFileName(value) {
     return value.substring(value.lastIndexOf("/")+1)
 }

 {{extractFileName(data.file)}}

Answer 4

Consider utilizing value.lastIndexOf()

 extractFileName(value) {
     return value.substring(value.lastIndexOf("/")+1)
 }

 {{extractFileName(data.file)}}

Answer 5

Answer №3

Here's a helpful tip: utilize the split method:

const path = 'example.com/images/gallery/photo.jpg';
path = path.split('/');
count = path.length;
const filename = path[count-1];
console.log(filename) // 'photo.jpg'

Answer 6

Here's a helpful tip: utilize the split method:

const path = 'example.com/images/gallery/photo.jpg';
path = path.split('/');
count = path.length;
const filename = path[count-1];
console.log(filename) // 'photo.jpg'

Answer 7

Answer №4

One way to achieve this is by utilizing regular expressions

const url = 'example.com/documents/users/3/example.docx'

console.log(url.match(/[^\/]+$/)[0])

Answer 8

One way to achieve this is by utilizing regular expressions

const url = 'example.com/documents/users/3/example.docx'

console.log(url.match(/[^\/]+$/)[0])

Answer 9

Answer №5

This JavaScript function is designed to extract just the filename from a URL, even if there are query string parameters included:

const fileInput = 'file:///folder1/folder2/folder3/filename.extension?possibleQueries';
extractFilename = ((url) => {
    lastCharIndex = url.length;
    if (url.lastIndexOf('?') > -1) {
        lastCharIndex = url.lastIndexOf('?');
    };
    return (url.substring(url.lastIndexOf("/") + 1, lastCharIndex));
})
(fileInput); // The expected result will be: "filename.extension"

Answer 10

This JavaScript function is designed to extract just the filename from a URL, even if there are query string parameters included:

const fileInput = 'file:///folder1/folder2/folder3/filename.extension?possibleQueries';
extractFilename = ((url) => {
    lastCharIndex = url.length;
    if (url.lastIndexOf('?') > -1) {
        lastCharIndex = url.lastIndexOf('?');
    };
    return (url.substring(url.lastIndexOf("/") + 1, lastCharIndex));
})
(fileInput); // The expected result will be: "filename.extension"

Extract the file name from a URL using Vue

Answer №1

Answer №2

Answer №3

Answer №4

Answer №5

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