bootstrapping

Angular (v5) service is getting constructed before APP_INITIALIZER promise resolves

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I had also a simmilar issue what solved the issue for me was to use Observable methods and operators to do everything. Then in the end just use the toPromise method of the Observable to return a Promise. This is also simpler because you don’t need to create a promise yourself. The AppConfig service will … Read more

Configuring Automapper in Bootstrapper violates Open-Closed Principle?

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I would argue that you are violating two principles: the single responsibility principle (SRP) and the open/closed principle (OCP). You are violating the SRP because the bootstrapping class have more than one reason to change: if you alter model binding or the auto mapper configuration. You would be violating the OCP if you were to … Read more

How can CoffeeScript be written in CoffeeScript?

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This is nothing new. C compilers have been written in C. Python has been written in Python. It’s possible to use a compiler for Language X to compile a newer version of itself, with more features. It’s called bootstrapping. Bootstrapping a language Writing a compiler in its own language How do you write a compiler … Read more

How to Bootstrap numpy installation in setup.py

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The following works at least with numpy1.8 and python{2.6,2.7,3.3}: from setuptools import setup from setuptools.command.build_ext import build_ext as _build_ext class build_ext(_build_ext): def finalize_options(self): _build_ext.finalize_options(self) # Prevent numpy from thinking it is still in its setup process: __builtins__.__NUMPY_SETUP__ = False import numpy self.include_dirs.append(numpy.get_include()) setup( … cmdclass={‘build_ext’:build_ext}, setup_requires=[‘numpy’], … ) For a small explanation, see why it … Read more

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