Tag: beginner
All the articles with the tag "beginner".
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How to Replace a Substring in a C++ String
Updated:Replace text inside a C++ string: replace one occurrence, replace all occurrences with a loop, and use std::string::replace by position. Copy-paste code included.
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How to Trim Whitespace from a String in C++
Updated:Trim leading and trailing whitespace from a C++ string. Copy-paste trim, ltrim and rtrim functions using find_first_not_of, plus a C++20 ranges version.
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cin vs getline in C++: Why getline Gets Skipped
Why does getline get skipped after cin >>? Learn the difference between cin extraction and getline, what the leftover newline does, and how to fix it for good.
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How to Check if a String Is a Number in C++
Check whether a C++ string is a valid number using stoi with exceptions, stringstream, or from_chars. Handles negatives, decimals and trailing junk correctly.