Self-tutoring about computer science: the tutor mentions the idea of a stub. In programming, a stub is a function that, when called, returns a value of the expected type so that the calling function can continue running. Being a stub …
Self-tutoring about Docker and containers: the tutor mentions the idea of image vs container. As I understand, an image is built by following instructions from a Dockerfile. The image is a software structure that contains all dependencies, etc., needed to …
Self-tutoring about computer science: the tutor mentions a comparison that might come to mind. One often hears about containers and virtual machines. Both technologies offer the premise of a controlled environment within a larger computer system. As I understand, a …
Self-tutoring about computer science: the tutor looks at what is meant by a module in Python. Python has the notion of a module. Yet, what is a module, exactly? A module, as I understand, is a .py file that contains …
Self-tutoring about Python coding: the tutor mentions an observation about Python class methods. A Python class method can be called by referencing its containing class name rather than an instance. Such a method might be called via classname.the_method(). However, it’s …
Self-tutoring about computer science: the tutor mentions the idea of a non-fast-forward error in Git. Let’s imagine two users, Worker1 and Worker2, who are working independently on the same file. Both make changes to it. Worker1 posts their changes, which …
Self-tutoring about modern business and comp sci terms: the tutor mentions Kanban and Scrum. Workflow has various meanings, but one idea is that it’s a series of states a job or artifact passes through in order to be transformed to …
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Self-tutoring about computer science: the tutor mentions the word cruft. As I understand, one meaning of cruft is unneeded code, or even hardware, that’s found in a working installation. In such a case, cruft can be bypassed without affecting the …
Self-tutoring about computer-oriented security: the tutor mentions passkeys. A passkey, as I understand, is part of a two-part code that enables authentication. The institution has their side, and the client, theirs. Only the combination of both parts, which are different, …
Tutoring math and computer science, you see hex occasionally. The tutor mentions it. A number like 0x76 or 0xea means it’s hex notation, or base 16. Therefore, 0x76 doesn’t mean 76; it actually means 7×161 + 6×160, or 118. Since …