regular expressions – Page 11

Counting Character Occurrences in a String with Python

Introduction When working with strings in programming, it’s often necessary to determine how many times a … Counting Character Occurrences in a String with PythonRead more

character occurrences, collections.Counter, regular expressions, str.count, string counting

Extracting Substrings with Bash

Bash, the ubiquitous command-line shell, provides a variety of methods for manipulating strings, including extracting substrings. … Extracting Substrings with BashRead more

Bash, extraction, regular expressions, string manipulation, substring

Eliminating Whitespace from Strings in Python

Introduction In programming, particularly when handling strings, whitespace (spaces, tabs, newlines) can often be extraneous and … Eliminating Whitespace from Strings in PythonRead more

Python string manipulation, regular expressions, remove whitespace, str.replace(), str.strip()

Matching Opening HTML Tags with Regular Expressions

Matching Opening HTML Tags with Regular Expressions Regular expressions (regex) are powerful tools for pattern matching … Matching Opening HTML Tags with Regular ExpressionsRead more

HTML, parsing, pattern matching, regex, regular expressions

Capitalizing the First Letter of a String in JavaScript

Welcome to this comprehensive guide on how to capitalize the first letter of a string in … Capitalizing the First Letter of a String in JavaScriptRead more

Capitalize First Letter, ES6 Arrow Functions, JavaScript, regular expressions, string manipulation

Replacing All Occurrences of a String in JavaScript: Techniques and Best Practices

Introduction In programming, particularly when dealing with text processing, you often need to replace all occurrences … Replacing All Occurrences of a String in JavaScript: Techniques and Best PracticesRead more

JavaScript String Replacement, regular expressions, replaceAll Method, Split-Join Technique

Validating Email Addresses in JavaScript

Validating email addresses is an essential task in many web applications, ensuring that users provide a … Validating Email Addresses in JavaScriptRead more

client-side validation, email validation, JavaScript, regular expressions, server-side validation

Splitting Strings in Java: A Comprehensive Guide

Introduction String manipulation is a fundamental aspect of programming, and Java provides robust tools for handling … Splitting Strings in Java: A Comprehensive GuideRead more

Java split, regular expressions, String splitting, String.split(), StringTokenizer

Matching Lines That Do Not Contain a Specific Word with Regular Expressions

Matching Lines That Do Not Contain a Specific Word with Regular Expressions Regular expressions (regex) are … Matching Lines That Do Not Contain a Specific Word with Regular ExpressionsRead more

grep, negative lookahead, pattern matching, regex, regular expressions

Retrieving Query String Values in JavaScript: Techniques and Best Practices

Introduction Query strings are a common way to pass data in URLs, often used for filtering … Retrieving Query String Values in JavaScript: Techniques and Best PracticesRead more

JavaScript, Object.fromEntries, Query String, regular expressions, URLSearchParams