String.prototype.substr () - JavaScript - MDN
Aug 19, 2025 · The substr () method of String values returns a portion of this string, starting at the specified index and extending for a given number of …
std::basic_string<CharT,Traits,Allocator>::substr - cppreference.com
If the requested substring extends past the end of the string, i.e. the count is greater than size() - pos (e.g. if count == npos), the returned substring is …
JavaScript String substr () Method - W3Schools
The substr() method extracts a part of a string. The substr() method begins at a specified position, and returns a specified number of characters. The …
substr () in C++ - GeeksforGeeks
Sep 19, 2025 · In C++, the string substr () function is used to extract a substring from the given string. It generates a new string with its value initialized to …
SUBSTR - Oracle Help Center
The SUBSTR functions return a portion of char, beginning at character position, substring_length characters long. SUBSTR calculates lengths using …
PHP: substr - Manual
If an invalid character range is requested, substr () returns an empty string as of PHP 8.0.0; previously, false was returned instead.
substr - Microsoft MakeCode for micro:bit
Take some part of the this string to make a smaller string (substring). You can copy a part of another string by getting a substring from it. A new substring …
SUBSTR ( ) function
Jul 15, 2020 · The SUBSTR ( ) function returns characters from the string value starting at the character position specified by start. The number of …
String.prototype.substr () - JavaScript | MDN
Jul 19, 2017 · The substr () method returns the characters in a string beginning at the specified location through the specified number of characters.
string - C++ Users
Position of the first character to be copied as a substring. If this is equal to the string length, the function returns an empty string. If this is greater than the …