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The Ultimate Cheat Sheet of Equivalents in Python and JavaScript

This cheat sheet highlights analogies in Python and JavaScript. It might be interesting to you if you are a full-stack developer working with Django, Flask, Pyramid or another Python-based framework, a server-side developer who wants to better understand the frontend, or a front-end developer who wants to better understand the server side.


The cheat sheet consists of three sheets: 

1. The traditional Python and JavaScript snippets which will work with Python 2.7-3.x and JavaScript based on ECMAScript 5 and ECMAScript 6 standards. 

2. The snippets with modern features of those programming languages which will require Python 3.6 and JavaScript based on the ECMAScript 6 standard (and Babel for backward compatibility).

3. A bonus sheet with the most useful list and dictionary operations.


These themes are covered:

  • integer parsing,
  • conditional assignments,
  • manipulating the values of object attributes and the values of dictionary keys,
  • list operations,
  • string operations,
  • serializing and deserializing objects to and from JSON,
  • working with regular expressions,
  • custom error handling,
  • string interpolation,
  • unpacking lists,
  • lambda functions,
  • iterating through lists,
  • generator functions,
  • working with values in sets,
  • handling function arguments,
  • creating classes with or without inheritance,
  • class properties. 


Uhh. That's a lot! Everything is nicely formatted and ready to print.


But wait a moment. That's not all. As a bonus you also get these themes:

  • finding if a list contains all truthful elements,
  • finding if a list has any truthful elements,
  • iterating through each element and its index,
  • getting the results of a function for each element in a list,
  • filtering elements by a function,
  • reducing elements by a function to a single value,
  • merging dictionaries.


Get it now and master your craft like a charm!


Current document revision is 12. Last modified in March 2019. PDF in color. Syntax highlighted. Optimized for laser printing.

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