This method extracts the characters in a string between 'from' and 'to', not including 'to' itself. substring(from, ): The substring() method extracts the characters from a string, between two specified indices, and returns the new sub string.substr(start, ): The substr() method extracts parts of a string, beginning at the character at the specified posistion, and returns the specified number of characters.Var str='Hello planet earth, you are a great planet.' Returns -1 if the value to search for never occurs. The string is searched from the end to the beginning, but returns the index starting at the beginning, at postion 0. lastIndexOf(searchvalue, ): Returns the position of the last occurrence of a specified value in a string.Var str='Hello world, welcome to the my blog.' This method returns -1 if the value to search for never occurs.

indexOf(searchvalue, ): Returns the position of the first occurrence of a specified value in a string.This is a static method of the String object, and the syntax is always omCharCode(). , nX): Converts Unicode values into characters. This method does not change the existing strings, but returns a new string containing the text of the joined strings. , stringX): The concat() method is used to join two or more strings. charCodeAt(n): Returns the Unicode of the character at the specified index in a string.charAt(n): Returns the character at the specified index in a string.

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