String and lists are the data structures commonly used in various programming languages for multiple purposes. We often see exchangeable conversions between list and string, for example, storing data into…
Tag: list
How to remove duplicates from a list in Python
In Python, a list is a versatile collection of objects that allows for duplicates. But sometimes it is necessary to make the list unique to streamline our data or perform…
How to merge arrays in JavaScript
How do you merge two arrays in JavaScript/jQuery? Method 1: Traditional or simple way – using loop Iterating on one of two arrays, get each element and append it into…
Fastest way to get the first n elements of a List or an Array
Which is the fastest way to get the first n elements of a List or an Array? Let’s give a context where we want to extract some first elements from…
ArrayList in Java
ArrayList class implements List interface and it is based on Array data structure. It is widely used because of the functionality and flexibility that it offers. Most of the developers…
Combine two lists in Groovy
Combination or concatenation of two or multiple lists are believed to appear quite frequently in programming. This article aims to show you how to union two lists in Groovy in…
Array, List, etc. with String Indices
(Tiếng Việt) Trong lập trình, chúng ta cũng hay gặp nhiều trường hợp phải tạo một danh mục mà index của nó là các chuỗi kí tự. Có một khái niệm để mô tả loại đối tượng này, thường gọi là HashMap hay HashTable.
Counting how many times each string appears in a list
To count how many times a word appearing in a list of words, we can do as follows: