Q51. What does the function zip() do?
One of the less common functions with beginners, zip() return s an iterator of tuples. ```python >>> list(zip(['a','b','c'],[1,2,3])) ``` [('a', 1), ('b', 2), ('c', 3)] H...
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Q52. Does JavaScript support namespaces?
JavaScript doesn’t support namespaces by default. So if you create any element (function, method, object, variable) then it becomes global and pollutes the global namespa...
Q53. How do you declare a namespace?
Even though JavaScript lacks namespaces, we can use Objects, an IIFE (Immediately Invoked Function Expression) or `let`/`const` to create namespaces. 1. **Using Object Li...
Q54. Explain a few methods to implement Functionally Oriented Programming in Python?
Sometimes, when we want to iterate over a list, a few methods come in handy. a. filter() Filter lets us filter in some values based on conditional logic. ```python >>> li...
Q55. What does the map() function do?
map() executes the function we pass to it as the first argument; it does so on all elements of the iterable in the second argument. Let's take an example, shall we? ```py...
Q56. List down some of the features of ES6
Below are the list of some new features of ES6, 1. Support for constants or immutable variables 2. Block-scope support for variables, constants and functions 3. Arrow fun...
Q57. How to make a chain of function decorators?
How can I make two decorators in Python that would do the following? ```python @makebold ``` @makeitalic ```python def say(): return "Hello" ``` which should return: "Hel...
Q58. How do I write a function with output parameters (call by reference)?
In Python arguments are passed by assignment. When you call a function with a parameter, a new reference is created that refers to the object passed in. This is separate ...
Q59. Benefits
- Avoids deep inheritance hierarchies - Encourages composition over inheritance - Promotes reusable and modular code Modern JavaScript favors mixin alternatives like comp...
Q60. Is Node.js completely single threaded?
Node is a single thread, but some of the functions included in the Node.js standard library(e.g, fs module functions) are not single threaded. i.e, Their logic runs outsi...