In Python, there are 2 ways to append integer to beginning of list. Using insert Method The list.insert() method inserts an item at a given position. The first argument is the index of the element before which to insert. For example, #!/usr/bin...

In Python, there are 3 ways to return dictionary keys as a list. Using keys Function The dict.keys() function returns a view object that displays a list of all the keys in the dictionary in order of insertion. See the following example: #!/usr/...

In Python, there are 4 ways to copy a dictionary. Using dict Method If you want to copy the dict, you have to do so explicitly with: #!/usr/bin/python3 a = {"a": 1, "b": 2} # Copy b = dict(a) b['a'] = 3 print(a) print(b) {'a': 1, 'b': 2} {'...

In Golang, there are 2 ways to unpack array as arguments. Using Variadic Functions Variadic functions can be called with any number of trailing arguments. Here’s a function that will take an arbitrary number of ints as arguments. For example, p...

In Python, there are 3 ways to merge two dictionaries into a new dictionary. Using Additional Unpacking Generalizations Starting with Python 3.5, we can merge in with literal notation as well. See the following example: #!/usr/bin/python3 # -*-...

Remove object files and cached files. Clean removes object files from package source directories. The go command builds most objects in a temporary directory, so go clean is mainly concerned with object files left by other tools or by manual invocati...