I use Vue. I try to output an image and it works fine when I use src but not when I use :src.
Works
<img src="../assets/image.png" />
Does not work
<img :src="`../assets/${image}.png`" />
What I've tried, but did not work
# first in the path.
~ first in the path.
./ first in the path.
/ first in the path.
require but it throws an error if the image can't load. I prefer the native broken image icon, which does not break the script.
My output
The variable image contains the filename which in this case would be image.
The output from both version is like below:
<img src="../assets/image.png" data-v-469af010=""> <!-- src -->
<img src="/img/image.f556f8c5.png" data-v-469af010=""> <!-- :src -->
For some reason they differ quite alot.
How can I solve it?
I solved this problem with this:
<img :src="cover(url)" /> // I call a method cover.
// Method cover
cover(url) {
if (url !== ''){ // You can check any matching expression.
try {
url = require('#/assets/img/' + url)
} catch (e) {
url = require('#/assets/img/default.jpg'); // I used a default image.
}
}
else
url = require('#/assets/img/default.jpg'); // Default image.
return url;
}
Bind src to the method.
getImgUrl(image) {
return `../assets/${image}.png`
}
in HTML
<img :src="getImgUrl(image)" />
If image variable is name of file
<img :src="'../assets/'+image" />
You should not use $ in template.
I am trying to display an image with the img tag by using a path from props for the src attribute.
I've tried changing the path with #, using the whole path with src, adding ../assets/ in the component and only passing the file name (orange.png) as props.
I always get the default broken image displayed.
When inspecting in the browser, the path seems fine.
When I display the image directly, I can see that the path is resolved to some different path <img data-v-1212d7a4="" src="/img/orange.7b71a54c.png">.
Edit:
Additionally I tried this post Can't dynamically pass relative src path for imgs in Vue.js + webpack ,
where using <img :src="require(picture_src)" /> is given as an answer.
This leads to an error: Error in render: "Error: Cannot find module '../assets/orange.png'"
(Edit2:
This answer in the end worked for me in the end as described in my answer post.)
The same error occurs with the similar webpack method using let images = require.context('../assets/', false, /\.png$/) in my script part, as the answer on this post Can't dynamically pass relative src path for imgs in Vue.js + webpack .
I am new to Vue.js, so I don't exactly know what is happening or how to search for this or it might not have anything to do with what I'm originally trying.
I am able to display my image when I pass the path directly, like this
<img src="../assets/orange.png"/>
Now I'd actually like to pass it to my component in the props and then, inside the component, display it reading the path from props.
Component
<template>
<div>
<img :src=picture_src />
<div class="pic_sub">{{pic_desc}}</div>
</div>
</template>
<script>
export default {
name: 'PictureCard',
props: {
picture_src: String,
pic_desc: String
}
}
</script>
Using the component:
<template>
<div>
<PictureCard pic_desc='some description text' picture_src='../assets/orange.png' />
</div>
</template>
<script>
import PictureCard from './components/PictureCard.vue'
export default {
name: 'app',
components: {
PictureCard
}
}
</script>
If it is possible, I'd love to display my from a path that is passed through the component's props.
Otherwise I'd love to know some other solutions, work-arounds or knowledge on best practices in this case.
This worked for me
<img :src="require(`#/assets/img/${filename}`)">
where filename is passed in as a String prop e.g. "myImage.png".
Make sure you use the path specific to your project.
Source: https://github.com/vuejs-templates/webpack/issues/450
Note: # is a webpack alias for /src that is set by default in Vue projects
After some research, I understand that my problem has to do with webpack and resolving filepaths. I used a modified version from this answer:
Vue.js dynamic images not working
and this answer:
Can't dynamically pass relative src path for imgs in Vue.js + webpack
Since the link in the second answer was dead, here's an active link to require.context documentation:
https://webpack.js.org/guides/dependency-management/#requirecontext
My mistake when trying the second link's answer was that I returned only orange.png as the path, while I needed to add ./ at the beginning.
My working picture component now looks like this.
<template>
<div>
<img :src="resolve_img_url(picture_src)" />
<div class="pic_sub">{{pic_desc}}</div>
</div>
</template>
<script>
export default {
name: 'PictureCard',
props: {
picture_src: String,
pic_desc: String
},
methods: {
resolve_img_url: function (path) {
let images = require.context('../assets/', false, /\.png$|\.jpg$/)
return images("./"+path)
}
}
}
</script>
I edited the regular expression to match .png and .jpg file endings. Therefore passing the prop looks like this now
<PictureCard picture_src='orange.png' pic_desc='some picture description'/>
This works for me:
This is how i use my Componenent.
<image-element
:imageSource="require('#/assets/images/logo.svg')">
</image-element>
My Image Component:
<template>
<div>
...
<img v-bind:src=imageSource />
...
</div>
</template>
<script lang="ts">
import Vue from 'vue'
import { Component, Prop } from 'nuxt-property-decorator'
#Component({
components: {
.....
}
})
export default class extends Vue {
...
#Prop({ default: '' }) imageSource!: String
...
}
</script>
Newer solution:
The 'require()'-method does not work when using Vite.
I got this error: ReferenceError: require is not defined.
This is how I solved it without 'require()' and with composition API:
From parent component:
<ChildComponent icon-filename="icon.svg" />
ChildComponent:
<template>
<div>
<img :src="getImageUrl()">
</div>
</template>
<script setup lang="ts">
import {defineProps} from "vue";
const props = defineProps({
iconFilename: String
})
function getImageUrl() {
// This path must be correct for your file
return new URL(`../assets/icons/${props.iconFilename}`, import.meta.url)
}
</script>
this is my favorite super simple way to do it. It can easily be reused in any file in any folder in my project. Just pass the actual path as a string from the perspective of the parent:
//some file
<ParentA>
<ImageComponent
myImagePath="../../../../../myCat.png"
/>
</ParentA>
//some other file in a different folder in my project
<ParentB>
<ImageComponent
myImagePath="../../myCat.png"
/>
</ParentB>
//child component file
<template functional>
<div>
<img :src="props.myImagePath">
</div>
</template
Thats all not working for me :D
The template File is wrong!
you need to add ":" before you set your prop.
thats how i should use the PictureCard
<PictureCard :picture_src="require('orange.png')"
pic_desc='some picture description'/>
and thats how my PictureCard should look like:
<template>
<div>
<img v-bind:src="picture_src" />
</div>
</template>
export default class PictureCard extends Vue {
#Prop({ default: require("#/assets/orange.svg") }) img!: string
}
so in case no prop is setted, so i added a default prop too.
and yes i only used the image.
I am trying to get a value from the current page by using the pageContext but I am getting either undefined or 404.
This is the situation:
In the Site pages library there are several news pages. Each news page has some tags attached to them. This tags lives in a custom column in the Site Pages library.
There are news that have 1 tag and other several tags. It can be the situation where two or more news share the same tag(s).
The goal is when I open a news page the tags that are attached to that news are also visible.
Until now I am using #pnp/pnpjs and the code looks like this:
var result: any = await sp.web.lists.getByTitle("Site Pages")
.items.getById(15)
.select("Tags")
.get();
return await result.Tags;
And it is giving me 404 error
I also tried this one:
this.context.pageContext.list('Site Pages').listItem['Tags'].get().then((items: any[]) => {
console.log(items);
});
But it giving me Cannot read property 'list' of undefined
Du you have an idea how can get the value of the Tags column asociated with the current news?
Here is an update
Now I am getting the right tag. The question now is how to show it in the screen?
import * as React from 'react';
import styles from './ReadTags.module.scss';
import { IReadTagsProps } from './IReadTagsProps';
import { sp } from '#pnp/pnpjs';
export default class ReadTags extends React.Component<IReadTagsProps, {}> {
constructor(props: IReadTagsProps) {
super(props);
}
private async getTags() {
var id = this.props.context.pageContext.listItem.id;
var result: any = await sp.web.lists.getByTitle("Site Pages")
.items.getById(id)
.select("Tags")
.get();
return await result.Tags;
}
public render(): React.ReactElement<IReadTagsProps> {
console.log(this.getTags());
return (
<div className={ styles.readTags }>
<div className={ styles.container }>
<div className={ styles.row }>
<div className={ styles.column }>
</div>
</div>
</div>
</div>
);
}
}
Regards
Amerco
What you'll probably want to do is store your tags in the state of your component. Then you can show these (if the value from state is not empty) during your render. I can highly recommend working through the React tutorial to understand React lifecycle and state/props.
https://reactjs.org/tutorial/tutorial.html
https://reactjs.org/docs/state-and-lifecycle.html
Something with getting your data in componentDidMount, storing it in the state by using this.setState and then running through them in render with this.state.tags. It's more of a React question then a SPFx question :)
There's a ton of samples here with SPFx and React:
https://github.com/SharePoint/sp-dev-fx-webparts/tree/master/samples
class ProductComponent extends Component {
render() {
var url = 'http://via.placeholder.com/150x150';
return (
<div>
<figure><img src={url} alt=""/></figure>
<div className="prod-dtl">
<span><img src={canada_logo} alt=""/> Williamsburg tote bag iPhone America…</span>
<h3>$15.00 <em>$ 25.00</em></h3>
<button className="add-btn">+</button>
</div>
</div>
);
}}
Above is my code let's say i'm getting images from APIs.
I have used create-react-app for creating app, now problem is when i'm opening my project in web view it is showing properly.
But from chrome console when i choose device like nexus 6 or iphone 6 whatever any device. image url will converted from
http://via.placeholder.com/150x150 => http://via#2x.placeholder.com/150x150
Automatically please help with these i need image to be fix nothing to append.
I havn't find any solution so i came across pure jQuery string replace, Once page fully loaded will remove #2x and #3x from image src.
$(document).ready(function () {
setTimeout(function () {
$('body img').prop('src', function (_, src) {
src = src.replace(/#2x\./, '.'); // strip if it's already there
src = src.replace(/#3x\./, '.'); // strip if it's already there
return src.replace(/(\.\w+$)/, '$1');
});
}, 0);
});
Hope this will help someone needed. Peace out:)
This is my first time asking a question so I am a true SO newbie. I am currently working on a mobile app and I am using Parse React and Ratchet to build it. I have read the React documentations on FB github and apparently do not understand all enough to solve some problems. One of my problems is using the results of a Parse Query in the observe function of the declared ParseComponent as a value of a rendered react component, which in turn attempts to render the passed value as HTML. Below is the parent object:
export default class CategoryPage extends ParseComponent
{
observe(props,state){
return{
category: new Parse.Query('BusinessCategory').equalTo("objectId", this.props.categoryId)
};
}
render() {
return (
<div>
<Header text={this.data.category.objectId} back="true"/>
<div className="content">
<BusinessList categoryId={this.data.category.objectId}/>
</div>
<NavBar />
</div>
);
}
};
Notice I am passing the objectId of the category found in the Query as a text attribute of the Header React component. I am expecting Header as a child to use the passed property as follows:
var Header = React.createClass({
render: function () {
return(
<header className="bar bar-nav">
<h1 className="title">{this.props.text}</h1>
</header>
);
}
});
However the h1 is not rendering anything! I am thinking that this.data.category.objectId is a string and therefore should be rendered in the h1 tag as a string.
I do appreciate your answers very much.