Getting started with programming: Playing with strings and numbers

Codecademy is the best place for beginner to learn programming. Here is the tutorial answer for JavaScript section. Hope it helps you! Passion is the key! Everyone always starts from the bottom.

18. Mid-lesson breather

Answer:

// This is an example of an if / else statement. if (12 / 4 === "Ari".length) { confirm("Will this run the first block?"); } else { confirm("Or the second block?"); }


19. Math

Answer:

if("Jon".length * 2 / (2+1) === 2 ) { console.log("The answer makes sense!"); } else { console.log("The answer does not makes sense!"); }

20. Math and the modulo

Answer:

// Below is an example of printing the remainder of 18/4 using modulo: // console.log(18 % 4); console.log(14 % 3); console.log(99 % 8); console.log(11 % 3);

21. Modulo and if / else

Answer:

//An example of an if/else statement with modulo in the condition if( 10 % 2 === 0) { console.log("The first number is even"); } else { console.log("The first number is odd"); }

22. Substrings

Answer:

"wonderful day".substring(3,7);

23. More substring practice

Answer:

// Use console.log( ) to print out the substrings. // Here is an example of the 1st to 4th letter of "JavaScript": // console.log("JavaScript".substring(0,4)); console.log( "January".substring(0, 3) ); console.log( "Melbourne is great".substring(0, 13) ); console.log( "Hamburgers".substring(3, 10) );