/* Escape Sequences in Strings Code Output \' single quote \" double quote \\ backslash \n newline \r carriage return \t tab \b word boundary \f form feed */ var firstStr = "I come first. "; var secondStr = "I come second."; /* Concatenating Strings with Plus Operator */ var myStr = firstStr + secondStr; /* Concatenating Strings with the Plus Equals Operator */ var myStr = firstStr; myStr += secondStr; /* Bracket Notation to Find the First Character */ var firstName = "Carlos"; var firstLetter = firstName[0]; // firstLetter is "C" var firstName[0] = "K"; // not possible! Individual characters of a string literal cannot be changed. /* Bracket Notation to Find the Last Character in a String */ var firstName = "Carlos"; var lastLetter = firstName[firstName.length - 1]; // lastLetter is "s" /* Split a string into an array of substrings */ var str = "How are you doing today?"; var res = str.split(" "); // [ 'How', 'are', 'you', 'doing', 'today?' ] var otherString = "How9are7you2today"; var byDigits = otherString.split(/\d/); // ["How", "are", "you", "today"] /* Array of strings to single string */ var stringArray = [ 'How', 'are', 'you', 'doing', 'today?' ]; var str = stringArray.join(" "); // "How are you doing today?" /* Check if a string ends with "universe." */ var str = "Hello world, welcome to the universe."; var n = str.endsWith("universe."); /* Lower & Upper Case */ console.log('ALPHABET'.toLowerCase()); // 'alphabet' console.log('alphabet'.toUpperCase()); // 'ALPHABET' console.log('test'.charAt(0).toUpperCase() + 'test'.slice(1)); // Test