Vue.js dynamic images not working

Question

I have a case where in my Vue.js with webpack web app, I need to display dynamic images. I want to show img where file name of images are stored in a variable. That variable is a computed property which is returning a Vuex store variable, which is being populated asynchronously on beforeMount.

<div class="col-lg-2" v-for="pic in pics">
   <img v-bind:src="'../assets/' + pic + '.png'" v-bind:alt="pic">
</div>

However it works perfectly when I just do:

<img src="../assets/dog.png" alt="dog">

My case is similar to this fiddle, but here it works with img URL, but in mine with actual file paths, it does not work.

What should be correct way to do it?

Solution 1

I got this working by following code

  getImgUrl(pet) {
    var images = require.context('../assets/', false, /\.png$/)
    return images('./' + pet + ".png")
  }

and in HTML:

<div class="col-lg-2" v-for="pic in pics">
   <img :src="getImgUrl(pic)" v-bind:alt="pic">
</div>

But not sure why my earlier approach did not work.

Solution 2

Here is a shorthand that webpack will use so you don't have to use require.context.

HTML:

<div class="col-lg-2" v-for="pic in pics">
    <img :src="getImgUrl(pic)" v-bind:alt="pic">
</div>

Vue Method:

getImgUrl(pic) {
    return require('../assets/'+pic)
}

And I find that the first 2 paragraphs in here explain why this works? well.

Please note that it's a good idea to put your pet pictures inside a subdirectory, instead of lobbing it in with all your other image assets. Like so: ./assets/pets/

Solution 3

You can try the require function. like this:

<img :src="require(`@/xxx/${name}.png`)" alt class="icon" />

The @ symbol points to the src directory.

source: Vue URL transfrom rules

Solution 4

There is another way of doing it by adding your image files to public folder instead of assets and access those as static images.

<img :src="'/img/' + pic + '.png'" v-bind:alt="pic" >

This is where you need to put your static images:

Solution 5

Your best bet is to just use a simple method to build the correct string for the image at the given index:

methods: {
  getPic(index) {
    return '../assets/' + this.pics[index] + '.png';
  }
}

then do the following inside your v-for:

<div class="col-lg-2" v-for="(pic, index) in pics">
   <img :src="getPic(index)" v-bind:alt="pic">
</div>

Here's the JSFiddle (obviously the images don't show, so I've put the image src next to the image):

https://jsfiddle.net/q2rzssxr/

View more solutions

Comments

[Mohamed Raza]

solved ` <v-img :src="require(@/assets/ + items.image)" height="200px"></v-img>` this one also solved the problem

[craig_h]

Really? Here's an example with real images which seems to work fine: jsfiddle.net/q2rzssxr/1

[Saurabh]

Not sure why, I got it working by the code I have written in another answer. You example even works without this function, see here: jsfiddle.net/9a6Lg2vd/1

[Saurabh]

In my case, pics is being populated asynchronously using Vuex store, may be that has something to do about it, I tried to simulate it, but did not work: jsfiddle.net/9a6Lg2vd/2

[Saurabh]

My case is more like this one: jsfiddle.net/9a6Lg2vd/4 , but in my local pets gets data populated from an ajax call, but images don't get render.

[Saurabh]

This also works: jsfiddle.net/9a6Lg2vd/5, not sure why it not working with file paths.

[antoine]

According to nickmessing: "The expression inside v-bind is executed at runtime, webpack aliases at compile time." github.com/vuejs/vue-loader/issues/896

[samlandfried]

@Grigio has a nice enhancement to this answer: stackoverflow.com/a/47480286/5948587

[StefanBob]

This worked for me except for the alt tag I omitted the v-bind

[drakkar]

saved me a lot of pain, I got strange Error: Cannot find module './undefined' using require, thanks

[estani]

The problem was that the path doesn't exist. The whole vue app get compiled by webpack into a single script (and images are also renamed normally, using a hash of the contents). Using require.context, you force the files to be seen by webpack and resolve to the resulting image. Check the working link in the browser and you'll see what I mean. Great solution.

[thinsoldier]

What if I don't want my images to be in the assets folder? What if they only exist in the website's public folder because they are uploaded by users of the admin area?

[harm]

Why is that @ symbol required?

[feng zhang]

@ symbol is not required, it offten represent your src dir when using Resolve | webpack (vue-cli is already config this.).

[jukenduit]

I think this is the way to go, not the assets folder.

[goodniceweb]

dynamic require didn't work for me too in the latest Vue2

[Mohamed Raza]

` <v-img :src="require(@/assets/ + items.image)" height="200px"></v-img>` this one also solved the problem

[lin]

hello, I have tried this but failed, then I found another solution that using template literals. It could work and I want to share this: stackoverflow.com/questions/57349167/…

[makkus]

This was the only working solution after a lot of trying..

[Mohamed Raza]

Thank you this works :src="require(../assets/category_avatar/baby_kids.jpeg)"

[Just Alex]

Even after so much years, this solution still works ! Thank you friend, you saved my nerves.

[Bhaskar]

The secret to each and every answer here is that they have ../assets in the require method, check stackoverflow.com/questions/57349167/… for more details

[nth-child]

This is the only solution that worked for me

[Ngọc Nguyễn]

Require didn't work for me in Vue3 too, but this is an amazing solution

[Muneer Khan]

@antoine the GitHub link is correct and verified it is working in my case it is working with the require keyword. :src="require('../assets/img/maintenance_page_concept.svg')"

[Arslan Ameer]

It is working fine in my case