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Static Code Analysis (Linting)
What Is It?
Analyzing and evaluating code without executing the program. Syntax, comments, naming conventions, and functions of the code are reviewed.
When Should it be Done?
Should be conducted in real time, every time a change is saved. Linting should as be done as a part of continuous integration.
Helpful Tools
Checklists, manual or automated tools, PHP CS (Code Sniffer), JS Hint