schoo2 | Laravel Api Application | REST library
kandi X-RAY | schoo2 Summary
kandi X-RAY | schoo2 Summary
This Application is a mini library api for school books.
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Top functions reviewed by kandi - BETA
- Remove a book
- Create the users table .
- Define the API routes .
- Define the web routes .
- Create a new user .
- Validate form data .
- Handle the guard .
- Handle unauthenticated user .
- Schedule a schedule .
- Return all books .
schoo2 Key Features
schoo2 Examples and Code Snippets
Community Discussions
Trending Discussions on schoo2
QUESTION
I am a beginner in React JS. I followed tutorial and tried to create a project when user selects the dropdown value and the selected value concatenates to a list. I got error message on the this.setState and had no clue how to solve the problem. Can someone give me a direction? Many thanks!
App.js
...ANSWER
Answered 2018-Oct-28 at 17:42The first time you run it the this.state.selectedList
does not exist in the state, as your initial state only contains InstitutionList
. So the this.state.selectedList.concat
will fail because you try to call concat
on an undefined
object.
Also your selectedList: [this.state.selectedList.concat(institution)]
will keep nesting arrays arrays. You most likely need
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install schoo2
PHP requires the Visual C runtime (CRT). The Microsoft Visual C++ Redistributable for Visual Studio 2019 is suitable for all these PHP versions, see visualstudio.microsoft.com. You MUST download the x86 CRT for PHP x86 builds and the x64 CRT for PHP x64 builds. The CRT installer supports the /quiet and /norestart command-line switches, so you can also script it.
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