Is it a bad practice to use break in a for loop? [closed]
No, break is the correct solution. Adding a boolean variable makes the code harder to read and adds a potential source of errors.
for-loop
TypeScript for … of with index / key?
.forEach already has this ability: const someArray = [9, 2, 5]; someArray.forEach((value, index) => { console.log(index); // 0, 1, 2 console.log(value); // 9, 2, 5 }); But if you want the abilities of for…of, then you can map the array to the index and value: for (const { index, value } of someArray.map((value, index) => … Read more
What is the pythonic way to detect the last element in a ‘for’ loop?
Most of the times it is easier (and cheaper) to make the first iteration the special case instead of the last one: first = True for data in data_list: if first: first = False else: between_items() item() This will work for any iterable, even for those that have no len(): file = open(‘/path/to/file’) for line … Read more
Difference between pre-increment and post-increment in a loop?
a++ is known as postfix. add 1 to a, returns the old value. ++a is known as prefix. add 1 to a, returns the new value. C#: string[] items = {“a”,”b”,”c”,”d”}; int i = 0; foreach (string item in items) { Console.WriteLine(++i); } Console.WriteLine(“”); i = 0; foreach (string item in items) { Console.WriteLine(i++); } … Read more