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It's the first time I am looking at Python and confused with the following lambda expression: >>> pairs = [(1, 'one'), (2, 'two'), (3, 'three'), (4, 'four')] >>> pairs.sort(key=lambda pair: pair[1]) >>> pairs [(4, 'four'), (1, 'one'), (3, 'three'), (...
We know if the content is heavy in website then it will take a much time than website having content in lower. Suppose, if we have 1mb page size then the site will load slower than the page size having 1kb. But I am trying to understand how can we co...
Can anyone please explain this code? (function f(){ function f(){ return 1; } return f(); function f(){ return 2; } })(); I really didn't understand the recursion. I thought it will return 1 because it already returned f(), but it returned 2.
I am learning nodejs. And I would like to process it further with building some real apps. So, what would you suggest to build on node.js? Please don't hesitate to provide advanced project types but it should be small and could be completed in maximu...
I expertise in front end development. Now, I have quit it and sitting freely. I just want to become a back end developer. And I have choosen node.js. But while learning node.js I also need to look in other modules, packages or libraries. So, can you ...
I am starting to learn node.js. While exploring to node, I came to a term: single vs multi threading. It says node.js is single threading system. But, node.js utilizes the code asynchronously. As far as I know, it runs any lines of code in between. W...
What do we need to learn for backend development, not language and not skills, but just concepts? For example: authentication and authorization social login Please don't give answer like database, rest api. These are just skills.