Python Reverse String: A Step-By-Step Guide

You can reverse a string in Python using slicing or the reversed() method. A recursive function that reads each character in a string and reverses the entire string is another common way to reverse a string. There is no function…

JavaScript Replace(): A Step-By-Step Guide

To replace text in a JavaScript string the replace() function is used. The replace() function takes two arguments, the substring to be replaced and the new string that will take its place. Regex(p) can also be used to replace text…

JavaScript Split: A Step-By-Step Guide

The JavaScript split() method divides a string into an array of substrings. These substrings are added to a new array. split() returns the new array of substrings. When you’re programming, it’s common to see cases where you need to get…

JavaScript Splice: How to Use It

The JavaScript splice() method modifies an array. It is used to add new elements to an array or remove or change existing ones. splice() changes the array on which it is used. It does not create a new array. It’s…

Python Read File: A Step-By-Step Guide

The open() function opens a file. You must use the “r” mode to read a file. The read(), readline(), readlines() functions return the contents of a file you have opened. Python is a useful programming language to use if you…

How to Use Substring in JavaScript

The JavaScript substring() method retrieves a range of characters between two index positions. You can use substring() to retrieve characters to the end of a string by omitting an end index position. A substring is a smaller portion of a…

JavaScript Filter: A Step-By-Step Guide

The JavaScript() filter method creates an array of elements from an existing array. The filter() method accepts a callback function as an argument. This function evaluates whether an element should be added to the new list from the existing one.…

Python Input: A Step-By-Step Guide

The Python input() and raw_input() functions are used to collect user input. input() has replaced raw_input() in Python 3 and onward. Both functions return a user input as a string. Processing user input is a crucial part of programming. For…

Python Break and Continue: Step-By-Step Guide

The Python break statement stops the loop in which the statement is placed. A Python continue statement skips a single iteration in a loop. Both break and continue statements can be used in a for or a while loop. You…

Python Append to List: A Step-By-Step Guide

The append() Python method adds an item to the end of an existing list. The append() method does not create a new list. Instead, original list is changed. append() also lets you add the contents of one list to another…

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