Objective

Today, we’re discussing data types. Check out the Tutorial tab for learning materials and an instructional video!

Objective

In this challenge, we practice creating buttons in JavaScript. Check out the attached tutorial for learning materials.

Objective

In this challenge, we review some basic concepts that will get you started with this series. You will need to use the same (or similar) syntax to read input and write output in challenges throughout HackerRank. Check out the Tutorial tab for learning materials and an instructional video!

Task

Complete the function in the editor below by returning a RegExp object, re, that matches every integer in some string s.

Task

Complete the function in the editor below by returning a RegExp object, re, that matches any string s satisfying both of the following conditions:

• String s starts with the prefix Mr., Mrs., Ms., Dr., or Er.
• The remainder of string s (i.e., the rest of the string after the prefix) consists of one or more upper and/or lowercase English alphabetic letters (i.e., [a-z] and [A-Z]).

Objective

In this challenge, we use a Regular Expression to evaluate a string. Check out the attached tutorial for more details.

Objective

In this challenge, we learn about JavaScript Dates. Check out the attached tutorial for more details.

Objective

Today, we’re practicing bitwise operations. Check the attached tutorial for more details.

Objective

In this challenge, we practice using JavaScript Template Literals. Check the attached tutorial for more details.

Objective

In this challenge, we practice implementing inheritance and use JavaScript prototypes to add a new method to an existing prototype. Check out the attached Classes tutorial to refresh what we’ve learned about these topics.