Common Dupes
JS:
- How can I access and process nested objects, arrays or JSON?
- How to return the response from an asynchronous call
- Why is my variable unaltered after I modify it inside of a function? - Asynchronous code reference
- JavaScript closure inside loops – simple practical example
Python:
- List of lists changes reflected across sublists unexpectedly
- How do I clone a list so that it doesn't change unexpectedly after assignment?
- Strange result when removing item from a list while iterating over it
- How to remove items from a list while iterating?
- Why does "a == x or y or z" always evaluate to True?
- How to test multiple variables for equality against a single value?
- Importing installed package from script raises "AttributeError: module has no attribute" or "ImportError: cannot import name" (file named the same as imported module)
- Does Python have a string 'contains' substring method?
- TypeError: 'list' object is not callable in python (shadows builtin function, then tries to call builtin)
- How to use variables in SQL statement in Python?
- Access a particular field in arbitrarily nested JSON data