skyler-cs

Python Tips

Equality test (==) and Identity test (is) in Python

Filename and line number of python script

from inspect import currentframe, getframeinfo
frameinfo = getframeinfo(currentframe())
print frameinfo.filename, frameinfo.lineno

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Merging a branch with anothor branch of an other source repository

# merging A/master with B/master
git remote add -f B path/to/B.git
git remote update
git merge B/master

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Angular Tips

Angular Services do NOT have to be Singletons

The benefit is that when Angular destroyed the component, Angular will also destroy the service and release the memory that is occupied by him. ngOnDestroy() will be called.

Angular Service Lifecycle

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Angular Troubleshooting List

angular-cli

• Assets/Images not being served... #9852
  • '-' in filepath
  • '[]' and '.' in filepath

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Angular Keypoints

App Module

• bootstrap ( main -> app.module )
  • for bootstrapping
  • only root module can have this property
• imports ( app.module )
  • modules and components
  • component tree will be open