Summary  
This chapter covers how to manipulate strings using operations like slicing, concatenation, searching, replacing, and formatting to transform and analyze text. It provides practice exercises that apply built-in string methods and printing to demonstrate each concept.

General domain of usage  
Text processing

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#define CATCH_CONFIG_MAIN
#include <catch2/catch.hpp>
#include <string>

std::string censorComment(std::string comment, std::string forbiddenWord);

TEST_CASE("Censor 'stupid' in comment -> 'This movie is ***'", "[censorComment]") {
    std::string result = censorComment("This movie is stupid", "stupid");
    REQUIRE(result == "This movie is ***"); // Expected: "This movie is ***", input: "This movie is stupid"
}

TEST_CASE("Censor 'hate' in comment -> 'I *** bugs in code'", "[censorComment]") {
    std::string result = censorComment("I hate bugs in code", "hate");
    REQUIRE(result == "I *** bugs in code"); // Expected: "I *** bugs in code", input: "I hate bugs in code"
}

TEST_CASE("No censorship if word not present -> 'What a nice day'", "[censorComment]") {
    std::string result = censorComment("What a nice day", "bad");
    REQUIRE(result == "What a nice day"); // Expected: "What a nice day", input: "What a nice day"
}

TEST_CASE("Censor first occurrence only -> 'This is *** and bad again'", "[censorComment]") {
    std::string result = censorComment("This is bad and bad again", "bad");
    REQUIRE(result == "This is *** and bad again"); // Expected: "This is *** and bad again", input: "This is bad and bad again"
}

TEST_CASE("Censor word at start -> '*** code here'", "[censorComment]") {
    std::string result = censorComment("ugly code here", "ugly");
    REQUIRE(result == "*** code here"); // Expected: "*** code here", input: "ugly code here"
}

TEST_CASE("Censor word at end -> 'Code is ***'", "[censorComment]") {
    std::string result = censorComment("Code is ugly", "ugly");
    REQUIRE(result == "Code is ***"); // Expected: "Code is ***", input: "Code is ugly"
}

TEST_CASE("Empty comment -> ''", "[censorComment]") {
    std::string result = censorComment("", "bad");
    REQUIRE(result == ""); // Expected: "", input: ""
}

test.cpp

At udvikle en omfattende forståelse af datatyper er afgørende, når man lærer et programmeringssprog. Dette kursus giver mulighed for at fordybe sig i datatyper i C++ og opnå indsigt i, hvordan de lagres i hukommelsen. Derudover dækker kurset emnet typekonvertering.

short, int, long, float, double osv. er alle numeriske datatyper. Du vil lære om dem alle samt de faldgruber, de kan indeholde.

Challenge: String Manipulation Practice

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