guide | Installation Coding Guidelines For Front-End Developers
kandi X-RAY | guide Summary
kandi X-RAY | guide Summary
Installation Coding Guidelines For Front-End Developers.
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Top functions reviewed by kandi - BETA
- Default femter implementation .
- Callback that handles the response
- Searches for a given selector .
- Create animation animation
- Creates a new matcher matcher .
- Main matcher function
- Ajax request .
- Creates a TOC from the text .
- Creates an matcher that matches the given tokens .
- Return the touches for a given event .
guide Key Features
guide Examples and Code Snippets
class Counter extends React.Component {
state = { count: 0 };
increment = () => {
this.setState({ count: this.state.count + 1 });
};
decrement = () => {
this.setState({ count: this.state.count - 1 });
};
render() {
retur
Community Discussions
Trending Discussions on guide
QUESTION
I have added android:exported="true"
to my only activity in manifest but still getting below error after updating compile sdk and target sdk version to 31.I also tried rebuilding the project , invalidating cache and restart but that didn't helped
Error- Apps targeting Android 12 and higher are required to specify an explicit value for android:exported when the corresponding component has an intent filter defined. See https://developer.android.com/guide/topics/manifest/activity-element#exported for details.
ANSWER
Answered 2021-Oct-05 at 10:38After the build has failed go to AndroidManifest.xml
and in the bottom click merged manifest see which activities which have intent-filter but don't have exported=true
attribute. Or you can just get the activities which are giving error.
Add these activities to your App manifest with android:exported="true"
and app tools:node="merge"
this will add exported attribute to the activities giving error.
Example:
QUESTION
Im attempting to find model performance metrics (F1 score, accuracy, recall) following this guide https://machinelearningmastery.com/how-to-calculate-precision-recall-f1-and-more-for-deep-learning-models/
This exact code was working a few months ago but now returning all sorts of errors, very confusing since i havent changed one character of this code. Maybe a package update has changed things?
I fit the sequential model with model.fit, then used model.evaluate to find test accuracy. Now i am attempting to use model.predict_classes to make class predictions (model is a multi-class classifier). Code shown below:
...ANSWER
Answered 2021-Aug-19 at 03:49This function were removed in TensorFlow version 2.6. According to the keras in rstudio reference
update to
QUESTION
In the C++ 17 and C++ 20 Working Drafts of the C++ Standard the deduction guide for the class template std::array
is defined the following way
ANSWER
Answered 2022-Mar-22 at 13:59C++17 has that requirement in the deduction guide.
QUESTION
After upgrading to android 12, the application is not compiling. It shows
"Manifest merger failed with multiple errors, see logs"
Error showing in Merged manifest:
Merging Errors: Error: android:exported needs to be explicitly specified for . Apps targeting Android 12 and higher are required to specify an explicit value for
android:exported
when the corresponding component has an intent filter defined. See https://developer.android.com/guide/topics/manifest/activity-element#exported for details. main manifest (this file)
I have set all the activity with android:exported="false"
. But it is still showing this issue.
My manifest file:
...ANSWER
Answered 2021-Aug-04 at 09:18I'm not sure what you're using to code, but in order to set it in Android Studio, open the manifest of your project and under the "activity" section, put android:exported="true"(or false if that is what you prefer). I have attached an example.
QUESTION
When testing components with s, for example in my answer to Recommended approach for route-based tests within routes of react-router, I often use the following pattern to get access to the current
location
for testing purposes:
ANSWER
Answered 2021-Nov-06 at 10:28React Router v6 splits apart the history into multiple pieces, for this use case the relevant parts are the navigator and the location. This change is hinted at in Use useNavigate
instead of useHistory
, and you can see it in the definition of the Navigator
type used in the Router
props:
QUESTION
So, I'm using Flutter and on running the App, I receive errors like these in the debug console:
...ANSWER
Answered 2021-Jul-31 at 19:43It not happen becuase of you have two build-tools version installed. It happens because of caches so on android studio just invalidating caches and restarting will fix this.
QUESTION
I am trying to understand overloading resolution in C++ through the books listed here. One such example that i wrote to clear my concepts whose output i am unable to understand is given below.
...ANSWER
Answered 2022-Jan-25 at 17:19Essentially, skipping over some stuff not relevant in this case, overload resolution is done to choose the user-defined conversion function to initialize the variable and (because there are no other differences between the conversion operators) the best viable one is chosen based on the rank of the standard conversion sequence required to convert the return value of to the variable's type.
The conversion int -> double
is a floating-integral conversion, which has rank conversion.
The conversion float -> double
is a floating-point promotion, which has rank promotion.
The rank promotion is better than the rank conversion, and so overload resolution will choose operator float
as the best viable overload.
The conversion int -> long double
is also a floating-integral conversion.
The conversion float -> long double
is not a floating-point promotion (which only applies for conversion float -> double
). It is instead a floating-point conversion which has rank conversion.
Both sequences now have the same standard conversion sequence rank and also none of the tie-breakers (which I won't go through) applies, so overload resolution is ambigious.
The conversion int -> bool
is a boolean conversion which has rank conversion.
The conversion float -> bool
is also a boolean conversion.
Therefore the same situation as above arises.
See https://en.cppreference.com/w/cpp/language/overload_resolution#Ranking_of_implicit_conversion_sequences and https://en.cppreference.com/w/cpp/language/implicit_conversion for a full list of the conversion categories and ranks.
Although it might seem that a conversion between floating-point types should be considered "better" than a conversion from integral to floating-point type, this is generally not the case.
QUESTION
Recently a critical log4j vulnerability was discovered.
I want to upgrade the log4j as used by my current Solr instance, so I checked here.
However, I don't see a log4j.properties
file in "/server/resources/" folder.
All I see there is:
- jetty-logging.properties
- log4j2.xml
- log4j2-console.xml
None of these files contain a version. So to upgrade, is it safe to download the latest version of log4j and overwrite the existing jars in folder "\solr-8.10.1\server\lib\ext", or what are the recommended steps to upgrade?
...ANSWER
Answered 2021-Dec-13 at 15:51The link you're pointing to is for an older version of Solr (6.6 instead of 8.10.1). The correct version is https://solr.apache.org/guide/8_10/configuring-logging.html where it mentions using log4j 2.
The file log4j2.xml (and even `log4j.properties for that matter) configure the logging itself, not the version of log4j. So updating that file is irrelevant.
Here's what the project page recommends:
2021-12-10, Apache Solr affected by Apache Log4J CVE-2021-44228
...
Description: Apache Solr releases prior to 8.11.1 were using a bundled version of the Apache Log4J library vulnerable to RCE. For full impact and additional detail consult the Log4J security page.
...
Mitigation: Any of the following are enough to prevent this vulnerability for Solr servers:
- Upgrade to Solr 8.11.1 or greater (when available), which will include an updated version of the log4j2 dependency.
- Manually update the version of log4j2 on your runtime classpath and restart your Solr application.
- (Linux/MacOS) Edit your solr.in.sh file to include: SOLR_OPTS="$SOLR_OPTS -Dlog4j2.formatMsgNoLookups=true"
- (Windows) Edit your solr.in.cmd file to include: set SOLR_OPTS=%SOLR_OPTS% -Dlog4j2.formatMsgNoLookups=true
- Follow any of the other mitgations listed at https://logging.apache.org/log4j/2.x/security.html
What you're proposing (overwrite the existing jars in folder "\solr-8.10.1\server\lib\ext") seems like the second approach, so it should probably work fine. Just make sure this is the correct place that contains the log4j dependency.
QUESTION
I was wondering if anyone knows a way to combine a table and ggplot legend so that the legend appears as a column in the table as shown in the image. Sorry if this has been asked before but I haven't been able to find a way to do this.
Edit: attached is code to produce the output below (minus the legend/table combination, which I am trying to produce, as I stitched that together in Powerpoint)
...ANSWER
Answered 2021-Dec-31 at 13:24This is an interesting problem. The short answer: Yes, it's possible. But I don't see a way around hard coding the position of table and legend, which is ugly.
The suggestion below requires hard coding in three places. I am using {ggpubr} for the table, and {cowplot} for the stitching.
Another problem arises from the legend key spacing for vertical legends. This is still a rather unresolved issue for other keys than polygons, to my knowledge. The associated GitHub issue is closed The legend spacing is not a problem any more. Ask teunbrand, and he knows the answer.
Some other relevant comments in the code.
QUESTION
I created a new Vue3 app using the Vue CLI and selected Prettier for my linter config. I want to use commitlint, husky and lint-staged to validate commit messages and lint the code before pushing it.
What I did
Based on https://commitlint.js.org/#/guides-local-setup I setup commitlint with husky
...ANSWER
Answered 2021-Dec-30 at 10:10I've suggested "**/*.{js,vue}": ["npm run lint:js:fix"]
, first of, lint:js:fix
is subjective and up to you. This is what Kent C Dodds is using, so I'm just naming it in the same way.
But you could totally have lint:watermelon-potato-hehe
instead, doesn't matter.
Now, about your propositions:
"**/*.{vue,js,jsx,ts,tsx}": "npm run lint"
, this one is targeting more extensions, which is totally fine. You may not really use.tsx/.jsx
since it's not really popular among Vue devs.
About.ts
itself, it may probably work good enough (maybe you'll need to add some plugins to your ESlint configuration). I'm not into TS so I can't really help on this one but it's out of the husky/lint-staged scope anyway.
Last time I started a Vue3 project, I've used Vitesse which has some nice defaults with TS, this may be a good start for you maybe.
As for the second part, since I like to setup my own ESlint config, with some simple and well documented API, we're using eslint --ext .js,.vue --fix
. That way I'm sure of what is happening and how to troubleshoot it if needed.
vue-cli-service lint may be a good default package aimed towards Vue with some defaults, I'm not sure what's inside it and even if it's probably just an ESlint with some baked-in configuration, again we prefer to make our own Vue configuration with vanilla ESlint.
So yeah, if you need to go fast, use vue-cli-service lint
for some quick linting, if you want to have a better flow in your project and want to fine grain your config, use vanilla ESlint, you'll get less trouble overall IMO.
"**/*.{vue,js,jsx,ts,tsx}": "eslint --ext .vue,.js,.jsx,.ts,.tsx --fix"
. On the right side, we globally have the samelint:js:fix
scripts but with additional extensions.
So, you may ask why are we even writing the extensions on the left side for lint-staged
and on the right side for lint:js:fix
? I'd answer that those are not really needed on the right side (AFAIK), because lint-staged will only run the command to the left list of extensions.
Here, we wanted to be more explicit about the exact extensions we're targeting and also, it enables you to run npm run lint:js:fix
in your CLI at any given point without getting errors on files ESlint is not handling (.txt
, .json
, .md
, .jpg
etc...).
So it could maybe be removed (not sure), fastest way to be sure is to try!
"**/*.{vue,js,jsx,ts,tsx}": "eslint --fix"
, this one may work fine as explained in the previous paragraph. Didn't tried it myself thought.
Regarding .html
, you should not have a lot of those in your Vue project. You could use the W3C validator to check for any errors if you really need it.
If you're speaking about your HTML in the template
tags in your .vue
files, those will be ESlint'ed properly. If you setup a Prettier on top of it, you will also get some nice auto-formatting which is really awesome to work with (once your team has agreed on a .prettierrc
config).
Regarding .json
files, those are not handled by ESlint. ESlint is only for JavaScript-ish files. If you want to lint/format your .json
or even any other extensions at all, you can aim towards NPM, find a package that suits your team's needs and add it to your chain like "**/*.json": ["npm run lint-my-json-please"]
and you should be good!
At the end, husky + lint-staged are not doing anything special really. They are tools to automate what you could write yourself in a CLI, so if it's working when done manually and you're happy with the result, you can put it in your config but you need to first found what the proper package and it's configuration.
In your package.json
, you could have the following
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