React - Colon is being replaced - reactjs

Can anyone explain, why the colon is being replaced in this case?
<div className="col-6 text-left">
{
hasHomepage &&
<a href={'http://' + this.props.productGroup.supplierWebsite} target="_blank">
{this.props.productGroup.supplierName}
</a>
}
{
!hasHomepage &&
this.props.productGroup.supplierName
}
</div>
When it's being rendered the result is:
Is this a known issue or do I miss something?

what you are seeing is the content of this.props.productGroup.supplierName the place where you are adding http:// won't show in the browser content

Related

How to use data-src in React

I need to use data-src attribute in < div > to show an image but in react this attribute for me is not working, is there any way to fix that?
<div
data-aos="fade-up"
data-aos-easing="ease-in-out"
data-aos-duration="600"
data-aos-once="true"
>
<a href="#">
<div data-src="../../contents/images/01.jpg">
<div>
//some text here
</div>
</div>
</a>
</div>
When I tested it in simple html it is working and no problem and image shows correctly, but in react it is not Ok...

React site warning: The href attribute requires a valid address. Provide a valid, navigable address as the href value jsx-a11y/anchor-is-valid

I am getting a warning on a React site I built
./src/components/layout/Navbar.js [1] Line 31: The href attribute requires a valid
address. Provide a valid, navigable address as the href value jsx-a11y/anchor-is-valid
on the following code:
<p>
{isEmpty(profile.website) ? null : (
<a
className="text-white p-2"
href={profile.website}
target="#"
>
<i className="fas fa-globe fa-2x" />
</a>
)}
{isEmpty(profile.social && profile.social.twitter) ? null : (
<a
className="text-white p-2"
href={profile.social.twitter}
target="#"
>
<i className="fab fa-twitter fa-2x" />
</a>
)}
{isEmpty(profile.social && profile.social.facebook) ? null : (
<a
className="text-white p-2"
href={profile.social.facebook}
target="#"
>
<i className="fab fa-facebook fa-2x" />
</a>
)}
</p>
Even though the warning appears only for the first link, the same warning occurs on the next link if I remove the first link temporarily or change the href of the first link to a static URL.
The links need to appear as just an icon.
I have tried things such as using a button (did not have the correct look), using a function to open the dynamic url, and trying to force the href to be a string by using '' + {profile.website}. Many other suggestions have not worked.
Is there a way to prevent the error, without changing the jsx-a11y rules? Is what I have done not a good pattern, or is it just a bug in React or JSX?
Use href="/#" to replace href="#" OR href="javascript:;" OR href="javascript:void(0);"
It should remove the warnings.
These worked for me to get rid off the warning;
...
<a href={() => false}>...</a>
I've used href="!#" to remove warnings.
This is just a warning not a error that href attribute requires a valid value as # points to nowhere you can add links to href attributes to remove this warnings or if you are still in early development phase just write
/* eslint-disable jsx-a11y/anchor-is-valid */
On top of your code it will remove the warnings from the terminal, the above line disables the rule for the specified file where it is written
/* eslint-disable jsx-a11y/anchor-is-valid */
import React from 'react';
const Header = () =>{
return(
<nav className="navbar navbar-expand-lg navbar-light bg-light">
<a className="navbar-brand" href="#">Navbar</a>
<button className="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span className="navbar-toggler-icon"></span>
</button>
</nav>
)
}
To also prevent default I use this:
<a href="/#" onClick={(e) => e.preventDefault()}>Link Text</a>
Insert space after # so no more warning about it
replace href="#" to href="# "
but better if use like that href="#something" => href="#profile"
please use <button> instead of <a> when there's no href attribute.
official reference
If you really have to use the a tag, it maybe help you:
<a href="#" onClick={ev => {ev.preventDefault(); onClick();}}>"Hello A Tag"</a>
try replacing
target="#"
to
target="_blank"
I got the similar warning for href, I did as follows. May be try this. I got rid of the warning and functionality is intact. I am not sure this is correct. But tried this.
let hrefLink = '#'; passed as a arg like href={hrefLink}
If you are trying to render a page link dynamically then you can switch out an <a> tag for a <div> tag instead. The warning message will go away.
// DON't DO THiS
<a className="page-link" href="javascript:void(0);" onClick={() => onPageChange(page)}>
{page}
</a>;
// TRY THIS INSTEAD
<div className="page-link" onClick={() => onPageChange(page)}>
{page}
</div>;
If you put "javascript" word in the href attribute then you will get a RED WARNING:
index.js:1375 Warning: A future version of React will block
javascript: URLs as a security precaution. Use event handlers instead
if you can.
Reference: EsLint error resolution page
I've used the href in tag a. it's remove warnings.
<a href>Pictures</a>
You also can hide this warning adding a eslint-disable-next-line comment:
// eslint-disable-next-line
<a
onClick={e => {
// do something
}}
>
example
</a>
I've used the following to remove warnings.
<a href="/">
If we have written correct url but it also gives the same error like I put www.reactjs.org then it also gives the same warning. To resolve these problem we have an attribute in anchor tag i.e.
<a
className="App-link"
href="https://reactjs.org"
target="_blank"
rel="noopener noreferrer"
>
Learn React
</a>
className used for style.
href used for links.
target used for open a link into new tab or not.
Rel is used to outcome from that warning in react.
I don't see something wrong if I'm refering to this.
https://github.com/evcohen/eslint-plugin-jsx-a11y/blob/master/docs/rules/anchor-is-valid.md
Check in these links. Some people had the same problem than you and it comes from a Link component. They fix it in adding an exception to .eslintrc:
first link => https://github.com/evcohen/eslint-plugin-jsx-a11y/issues/340
and the second link => How can I fix jsx-a11y/anchor-is-valid when using the Link component in React?
Let me know if it's helping.
Late to the game but surprised no one recommended window.location, which simply sets the same exact route as the current?
Other solutions such as "#", "/#", and "/" actually modify the current route right? For a more generic solution just use window.location to stay on the current page without modification.
<a href="window.location" onClick={...}> Better Solution </a>
If you really want your anchor tag to have an onClick method you must use a valid href link orelse it will throw an error , The href attribute requires a valid value to be accessible. If you cannot provide a valid href, but still need the element to resemble a link, use a button and change it with appropriate styles.
Change you button style with this property to make transparent
button{
background-color: Transparent;
background-repeat:no-repeat;
border: none;
cursor:pointer;
overflow: hidden;
outline:none;
}
and set the text inside the button to the resemble link color
I have use this color
.editcolor{
color: #1890ff;
}
I resolved my errors with this method.
I tried but most of the answers above did not work for me since the newer eslint does not allow most of them. Instead, it mentions disabling eslint for the specific line.
Simply add: // eslint-disable-next-line to the line which comes just before the jsx line that throws error.
Also, add this comment within {/* ... */} else it will show error.
Usage: {/* // eslint-disable-next-line */ }}
They advise the same thing:
Hope this solves it!
You just need to change "#" to "# ". Good luck
<li className="nav-item pointer">
<a onClick={logout} href="/#" className="nav-link">
LOGOUT
</a>
</li>
or just use
href="/"
Do Not Use: <a href='#'>Something</a> but instead use: <a href='/'>Something</a>

JSX not returning expected HTML

I have the following code in my React component's return statement:
return (
<div>
{
props.photos.length > 0 &&
<div>
{props.photos.map((photo) =>
<div>
<a target="_blank"
href="/api/game_theory/game-files/{this.props.profileId}/files/{photo.id}/{photo.downloadName}">
{photo.title}
</a>
</div>
)}
</div>
}
</div>
);
It renders without errors, however the anchor tag looks like this in the HTML:
<a target="_blank" href="/api/game_theory/game-files/{this.props.profileId}/files/{photo.id}/{photo.downloadName}">
ActualPhotoName.jpg
</a>
So photo.title is being written out correctly, but photo.id, photo.downloadName, and this.props.profileId are not.
I'm sure I'm doing something wrong and I'd appreciate any help. :)
You can't "double-interpret" javascript with brackets in JSX. Assuming your props are available to you, try using ES6 string interpolation:
href=`/api/game_theory/game-files/${this.props.profileId}/files/${photo.id}/${photo.downloadName}`>
Wrap the whole href inside { } and remove it from the props:
href={"/api/game_theory/game-files/" + this.props.profileId + "/files/" + photo.id + "/photo.downloadName"}

why my image root not found

i am using go-lang with angular to build a car view in this approach:
this is my main.go
router.GET("/shopping", carBaseController.CarsViewIndex)
router.GET("/images", galleryBaseController.GetImages)
in my controller\cars.go
func (controller CarController) CarsViewIndex(c *gin.Context) {
c.HTML(http.StatusOK, "carview.html", gin.H{
"title": "Car Page"})
}
func (controller GalleryController) GetImages(c *gin.Context) {
imageList := controller.galleryService.FindImages(&bson.M{})
c.JSON(http.StatusOK, &imageList)
fmt.Println(imageList)
}
in my carview.html
<div class="row mix-grid" ng-init="GetAllImages()" >
<div class="col-md-3 mix photography" ng-repeat="image in allimages">
<div class="hover-effect" >
<div class="img" ><img src="imagesT/gallery/Thumb/{{image.imagename}}" alt=""
class="img-responsive"/></div>
<div class="info"><h3>Manage Images</h3><a href="#"
class="mix-link"><i
class="glyphicon glyphicon-link"></i></a><a
href="imagesT/gallery/{{image.imagename}}" data-lightbox="image-1"
data-title="Image 1" class="mix-zoom"><i
class="glyphicon glyphicon-search"></i></a></div>
</div>
this is the site fo cars
<a class="btn btn-default" href="carinfo">Learn More
<span class="glyphicon glyphicon-chevron-right"></span></a>
</div>
</div>
when i enter http://localhost:3030/shopping every thing work fine but i found this error
"NetworkError: 404 Not Found -
http://localhost:3030/imagesT/gallery/Thumb/%7B%7Bimage.imagename%7D%7D"
i do not know why this error happen while every thing work fine and this what i fount with firbug :
<img class="img-responsive" alt="" src="imagesT/gallery/Thumb/2016-chevrolet-cruze-spied-completely-uncovered-news-car-and-driver-photo-658949-s-217x132.jpg">
Have you tried with ng-src instead of src ?
If you use ng-src instead of src in your img tag, you can resolve this issue.
Using Angular markup like {{hash}} in a src attribute doesn't work
right: The browser will fetch from the URL with the literal text
{{hash}} until Angular replaces the expression inside {{hash}}. The
ngSrc directive solves this problem.
Check out the docs here.

React anchor link delims not parsing data

I have a simple anchor / for loop:
<ul className="user-list">
{this.props.partymembers.map((user, i) => {
return (
<li key={i} className="membername">
{user.username}
</li>
)
})}
</ul>
But the link just shows up as /friends/add/{user.id} instead of /friends/add/141513531 am I missing something here? Thanks. Username shows fine, but not inside the ""
I managed to solve it by doing
<li key={i} className="membername">
{React.createElement('a', { href: '/friends/add'+user.id}, user.username)}
</li>
but that almost seems hacky, is there a better way to do it?
The whole attribute needs to be either a string or an expression. So something like this:
<a href={'/friends/add/' + user.id}>{user.username}</a>
If you're using babel to transpile ES6, you can use template strings:
<a href={`/friends/add/${user.id}`>{user.username}</a>

Resources