The importance of checking for existing methods, and Python's bitwise operators. Today I Learned: Friday 17 June 2022

The .replace() python method I mentioned yesterday worked. Before, i used it, I put so much time into creating some complex code with the method that I knew about. I've learned now to check the code documentation to see if there already might be a method to help with them problem.

• Big thanks to this guy for showing me the .replace() method.

You cannot iterate through an int in a for loop.

• I tried to use:

  • for i in len(word)

• This doesn't work. I think it is only for strings and lists.

When using a loop to multiply multiple ints, don't initiate the variable with zero.

• 0 * 4 is still 0

I learned about the 'in' and 'not in' conditional statements to check if an element is in a list.

functions can be called from within another function.

A tuple is an element from a dictionary. It consists of the key and the value

• eg [('taken', true), ('age', 33)]

• They around surrounded by brackets: ()

There are 'anonymous' functions in Python, as in functions that don't need to be named.

• lambda is an example of one such function.

• It works alongside another function called filter.

• I don't fully understand its purpose yet.

Now I'm learning about Python bitwise operators, which are used to modify bits.

• They're pretty confusing. Theres a thing called a bit mask thats used to check if a bit is on or off.