How to iterate (keys, values) in JavaScript?

tl;dr In ECMAScript 2017, just call Object.entries(yourObj). In ECMAScript 2015, it is possible with Maps. In ECMAScript 5, it is not possible. ECMAScript 2017 ECMAScript 2017 introduced a new Object.entries function. You can use this to iterate the object as you wanted. Output ECMAScript 2015 In ECMAScript 2015, there is not Object.entries but you can use Map objects instead and iterate over them … Read more

C# Dictionary get item by index

If you need to extract an element key based on an index, this function can be used: If you need to extract the Key where the element value is equal to the integer generated randomly, you can use the following function: Make sure that you added reference to System.Linq in your class. Side Note: The first element … Read more

How to print both strings in a dictionary in Python

Your problem is that you need to use square brackets([]) instead of parenthesis(()). Like so: But I recommend using the .items()( that would be .iteritems() if your using Python 2.x) attribute of dicts instead: Thanks to @PierceDarragh for mentioning that using .format() would be a better option for your string formatting. eg. Or, as @ShadowRanger … Read more

Map vs Object in JavaScript

According to MDN: A Map object can iterate its elements in insertion order – a for..of loop will return an array of [key, value] for each iteration. and Objects are similar to Maps in that both let you set keys to values, retrieve those values, delete keys, and detect whether something is stored at a key. Because … Read more

Iterating over dictionary items(), values(), keys() in Python 3

I’m not sure if this is quite an answer to your questions but hopefully it explains a bit about the difference between Python 2 and 3 in this regard. In Python 2, iter(d.keys()) and d.iterkeys() are not quite equivalent, although they will behave the same. In the first, keys() will return a copy of the dictionary’s list of keys and iter will then … Read more