The JavaScript String toLowerCase() function is a built-in method that converts all the characters in a string to lowercase. This function does not modify the original string, but instead returns a new string with all the characters in lowercase. The toLowerCase() function is useful when comparing strings, as it ensures that the comparison is case-insensitive. It can also be used to normalize user input, as it ensures that all characters are in the same case. The toLowerCase() function can be called on any string variable or string literal, and takes no arguments. Keep reading below to learn how to Javascript String toLowerCase in C++.

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Javascript String toLowerCase in C++ With Example Code

Converting a string to lowercase is a common task in programming. In C++, you can use the std::transform function to convert a string to lowercase. Here’s an example:

#include <algorithm>
#include <cctype>
#include <string>
#include <iostream>

int main() {
  std::string str = "HELLO WORLD";
  std::transform(str.begin(), str.end(), str.begin(), [](unsigned char c){ return std::tolower(c); });
  std::cout << str << std::endl;
  return 0;

In this example, we first define a string str with the value “HELLO WORLD”. We then use std::transform to convert each character in the string to lowercase. The lambda function passed to std::transform takes an unsigned char as input and returns the lowercase version of that character using the std::tolower function. Finally, we output the lowercase string to the console.

Equivalent of Javascript String toLowerCase in C++

In conclusion, the C++ programming language provides a powerful and efficient way to manipulate strings. One of the most commonly used string functions is the toLowerCase() function, which converts all uppercase characters in a string to their lowercase equivalents. While C++ does not have a built-in toLowerCase() function like JavaScript, it is still possible to achieve the same result using a combination of built-in functions and loops. By using the transform() function and a lambda expression, we can easily convert all uppercase characters in a string to lowercase. Overall, the C++ equivalent of the JavaScript toLowerCase() function is a useful tool for developers who need to manipulate strings in their programs.

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