  Easy JavaScript ChallengesIntroductory challenges and solutions

Course Material

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• Challenges
• AB Check

For this challenge you will determine if two characters are separated a specific way in the string. 17727 solutions

• Ex Oh

For this challenge you will traverse a string and determine if there is an equal amount of certain characters. 14967 solutions

• Palindrome

For this challenge you will determine if a string is written the same way forward and backwards. 17501 solutions

• Arith Geo

For this challenge you will determine if numbers within an array follow an arithmetic or geometric sequence. 14019 solutions

• Array Addition I

For this challenge you will determine if numbers in an array can add up to a certain number in the array. 9125 solutions

• Letter Count I

For this challenge you will determine which word has the greatest number of repeated letters. 8313 solutions

• Second GreatLow

For this challenge you will determine the second lowest and greatest numbers in an array. 13777 solutions

• Division Stringified

For this challenge you will divide two numbers and return them in a certain format. 10260 solutions

• Counting Minutes I

For this challenge you will return the total number of minutes between two times. 6087 solutions

• Mean Mode

For this challenge you will determine if the mode equals the mean in an array. 7958 solutions

• Dash Insert

For this challenge you will be manipulating a string using dashes (-). 9050 solutions

• Swap Case

For this challenge you will be swapping the case of each character in the string. 8438 solutions

• Number Addition

For this challenge you will traverse a string searching for all the numbers and then you will add them up. 8378 solutions

• Third Greatest

For this challenge you will determine the third largest string within an array. 7768 solutions

• Powers of Two

For this challenge you will be determining whether or not a number is a power of two. 8684 solutions

• Additive Persistence

For this challenge you will be determining the additive persistence for a given number. 6315 solutions

• Multiplicative Persistence

For this challenge you will be determining the multiplicative persistence for a given number. 4878 solutions

• Off Line Minimum

For this challenge you will be creating a subset of an array. 6520 solutions

• Changing Sequence

For this challenge you will determine when an array changes sequences. 3073 solutions

• Overlapping Ranges

For this practice test you will determine the intersection between two sets. 2816 solutions

• Superincreasing

For this challenge you will determine if each number is greater than the sum of all previous elements in an array. 2875 solutions

• Hamming Distance

For this challenge you will determine the difference between two strings. 2004 solutions

• Rectangle Area

For this challenge you will determine the area of a rectangle. 2406 solutions