ef core tips

 Debug code-first Entity Framework migration codes

 Place this piece of code right above the migration you want to debug:

  if (!System.Diagnostics.Debugger.IsAttached)
            System.Diagnostics.Debugger.Launch();

More details / Ref  : https://stackoverflow.com/a/52700520/193061

Powershell TitBits

Replace all file names in a folder

Get-ChildItem -Filter “*ModelMap*” -Recurse | Rename-Item -NewName {$_.name -replace ‘ModelMap’ ,’ModelMapping’ }

Java To C# mapping

   Java          C#

   Map      Dictionary
   Set      HashSet
   Pair      KeyValuePair 
   .map              .Select       
   .collect          .ToList()
   .stream           .AsEnumerable 
   LinkedHashSet     <Need custom impl >
   flatMap()         SelectMany
   format()      String.format()
   zip( .Zip(
   joining() String.Join(
   InstStream(1,100)  Enumerable.Range(1, 100)
   Function    Func 
   .apply(           .Invoke(
   .isEmpty()   .Any()
   .size()   .Count
   .filter(           .Where(
   BiFunction    Func
   

Addins for Software tools

SQL management addins



VS Code Addins

• Javascript/ Typescript  
• Prettier 
• using powershell
• https://4sysops.com/archives/make-visual-studio-code-look-and-behave-like-powershell-ise/ 
• d
• 
  
• 
  

RxJs Excellent posts

RxJs Excellent posts

RxJS Operators for Dummies: forkJoin, zip, combineLatest, withLatestFrom
https://scotch.io/tutorials/rxjs-operators-for-dummies-forkjoin-zip-combinelatest-withlatestfrom

using Linq methods with caution - E.g FirstorDefault()

Don't use FirstorDefault() unless you are sure its valid/ verified in the business scenario. else you are going to introduce bugs in the code.

Git tips

Set up Git

Removing non-repository files with git?

Keep your fork synced

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How do I discard unstaged changes in Git?

Ans: 

a)For a specific file use:

git checkout path/to/file/to/revert

b)For all unstaged files use:

git checkout -- .

Make sure to include the period at the end.

c)To check out specific files

git checkout -- cats.html index.html

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git branch -a                                     -- lists all branches
git push origin :branchnamehere     -- to delete the remote branch(note semicolin before                                                                                    branchname)

git remote show origin                     -- checks for stale branches tracking origin
git remote prune origin                     -- to clean up deleted remote branches

git tag                                                           -- list all tags
git tag -a v0.1.2.3 -m "versioncomments"   -- add a new tag
git push --tags                                              -- to push new tags


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git fetch      -- pulls down the history but does not merge

rebase vs Merge
Rule of thumb:
1. When pulling changes from origin/develop onto your local develop use rebase.
          git pull --rebase

2. When finishing a feature branch merge the changes back to develop.

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