There are two string operators. The first is the concatenation operator (‘.‘), which returns the concatenation of its right and left arguments. The second is the concatenating assignment operator (‘.=‘), which appends the argument on the right side to the argument on the left side....

Given string str, the task is to check whether it is a valid HTML tag or not by using Regular Expression.The valid HTML tag must satisfy the following conditions:...

Comma Separated Values or CSV is a type of text file where each value is delimited by a comma. CSV files are very useful for the import and export of data to other software applications....

Write a function to check whether two given strings are anagram of each other or not. An anagram of a string is another string that contains the same characters, only the order of characters can be different. For example, “abcd” and “dabc” are an anagram of each other....

Converting numbers to strings in JavaScript is a common task that can be achieved using various methods. Understanding these methods is essential for data manipulation and presentation in web development. This guide will cover the different ways to convert numbers to strings in JavaScript, including using the toString(), String(), and template literals. Mastering these techniques ensures efficient and accurate data handling in your projects....

Web Crawler is a bot that downloads the content from the internet and indexes it. The main purpose of this bot is to learn about the different web pages on the internet. This kind of bots is mostly operated by search engines. By applying the search algorithms to the data collected by the web crawlers, search engines can provide the relevant links as a response for the request requested by the user. In this article, let’s discuss how the web crawler is implemented....

Given an expression string exp, write a program to examine whether the pairs and the orders of “{“, “}”, “(“, “)”, “[“, “]” are correct in exp....

Write a javascript program for a given string S which may contain lowercase and uppercase characters. The task is to remove all duplicate characters from the string and find the resultant string....

Example: Let the input string be “i like this program very much”. The function should change the string to “much very program this like i”...

Given a string str, find the length of the longest substring without repeating characters....

In the programming world, a string is considered a data type, which in general is a sequence of multiple characters that can contain whitespaces, numbers, characters, and special symbols. For example, “Hello World!”, “ID-34#90” etc. PHP also allows single quotes(‘ ‘) for defining a string. Every programming language provides some in-built functions for the manipulation of strings. Some of the basic string functions provided by PHP are as follows:...

Given a Romal numeral, the task is to find its corresponding decimal value....