Code Newbie

Quick Knowledge Here — A tech stack is a set of technologies that are stacked together to build an app. For example, let’s say you create your backend with Django and your frontend with react. Your tech stack would be, Django( Python) & react( JavaScript). What Goes In A Tech Stack? Every technology you use in your app is part…

The following code snippet zips two dictionaries, adding values as list items to existing keys. So for a double key entry, the value gets added as a list item. The only workable solution I could come up with, is defining each value as a list item, in order to be able to append more items to it. If there is a better way to do this, please let me know. The working code from Manning did not work for me.

The function in the following code snippets takes in two arguments and then sums the numbers larger than the first argument, leaving out the lower values. It is fairly straightforwarded. What’s nice to know is how to iterate over *args in a for loop, which is “for arg in args” or something of the kind.

The following code snippet returns a two-element list, containing (respectively) the sum of the even-indexed numbers and the sum of the odd-indexed numbers. For example, a function call with ([10, 20,30, 40, 50, 60]) returns [90, 120]. This is where the enumerate() function comes in handy, which creates a 2-element tuple of each list element, adding an index starting from zero. Using enumerate() with a for loop, a simple if-else block can check if the index is even or uneven, to have the results summed and added to an empty list. You need to assign the a and b variables, if not, your code will error out. Here’s the code:

The following code snippet is a variation on the last one, but now different elements are summed and subtracted from each other. A function call of ([10, 20, 30, 40, 50, 60]), would result in 10+20–30+40–50+60, or 50. Now this is a little tricky if you start with a “total”…

The No BS Tutorial You’ve Needed! — There’s a lot of confusion on what’s the BEST programming language. In fact, I’ve made a blog about this( you can read it here). And a lot of beginners don’t know how to choose their coding language. So here’s the, No BS Tutorial You’ve Needed! Think Before You Speak! You’ve decided you want to…

What is a URI and how is it different from a URL? URI stands for Uniform Resource Identifier. URL stands for Uniform Resource Locator. Anything that uniquely identifies a resource is its URI, such as id, name, or ISBN number. A URL specifies a resource and how it can be accessed (the protocol). …

The following code snippet takes a string of characters and converts each single character that is not a letter or number to a different format, which is its ASCII value in hexadecimal. Example: a string containing a space, would be converted to “0x20”. The Python documentation has a nice “HOWTO”…

The following code snippet finds the longest word(s) from a file. It opens the file, reads all the contents and then outputs the longest words based on their length. The snippet comes from the internet, and as it works fine I’ve just reproduced it here. What I like about it is that it outputs multiple longest words, instead of only one. I think this approach is better than just updating a single variable when it encounters a long word of equal length.