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C++ String operator+=() This function is used to extend the string by appending new characters at the end of the string. Syntax…

C++ String front() This function is used to reference a first character of the string. Syntax Consider a string str. Syntax would…

C++ String compare() This function compares the value of the string object to the sequence of characters specified by its parameter. Syntax…

C++ String copy() This function copies the contents of one string into another string. Syntax Suppose str1 and str2 are two string…

C++ String Assign() This functions assigns a new value to the string,replacing all its current contents. Syntax Consider two strings str1 and…

C++ String find_first_of() This function is used for finding the location of first occurrence of the specified characters. Syntax Consider string str1…

C++ String Find() This function is used for finding a specified substring. Syntax Consider two strings str1 and str2. Syntax would be…

C++ String resize() This function is used to resize the string to the length of k characters. Syntax Consider a string object…

Comparison Operators Swift 4 supports all standard comparison operators of C language. Equal to (a == b) Not equal to (a !=…

C++ String insert() This function is used to insert a new character, before the character indicated by the position pos. Syntax Consider…