Linked Questions
65 questions linked to/from Tips for Golfing in ECMAScript 6 and above
173
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Tips for golfing in JavaScript
What general tips do you have for golfing in JavaScript? I'm looking for ideas that can be applied to code golf problems in general that are at least somewhat specific to JavaScript (e.g. "remove ...
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125
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110
answers
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Loading... Forever
Your challenge is to make an infinite loading screen, that looks like this:
Or, to be more specific:
Take no input.
Output Loading..., with a trailing space, but ...
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91
votes
119
answers
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N(e(s(t))) a string
To "function nest" a string, you must:
Treat the first character as a function, and the following characters as the arguments to that function. For example, if the input string was ...
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59
votes
100
answers
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Find the smallest number that doesn't divide N
This challenge is simple enough that it's basically all in the title: you're given a positive integer N and you should return the smallest positive integer which is not a divisor of N.
An example: the ...
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52
votes
96
answers
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47
votes
101
answers
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Draw an ASCII chess board!
Here is a simple challenge for you: You must produce this ASCII representation of a chess board. White is represented by uppercase characters, and black is represented by lowercase. Empty tiles are ...
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53
votes
76
answers
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Output the alphabet, the ALPHABET, or just a character
The challenge is simple:
Write a function or program that takes an input x, and outputs the lower case alphabet if x is part of ...
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46
votes
73
answers
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Can this number be written in (3^x) - 1 format?
Challenge:
Create a program that accepts a positive integer and checks if it can be written in the form of (3^x)-1, where X is another positive integer.
If it can, output X
If it can't, output -1 ...
- 3,072
44
votes
56
answers
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Don't give me five!
Question :
You will be given the starting and ending integers of a sequence and should return the number of integers within it which do not contain the digit 5. The ...
- 461
33
votes
68
answers
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Count the divisors of a number
Introduction
This is a very simple challenge: simply count the divisors of a number. We've had a similar but more complicated challenge before, but I'm intending this one to be entry-level.
The ...
- 2,282
27
votes
76
answers
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Display numbers lacking 2's
Display numbers from one to one-hundred (in increasing order), but number 2 shouldn’t appear anywhere in the sequence. So, for example, the numbers two (2) or ...
- 1,197
38
votes
70
answers
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Cat goes "Meow"
cat goes "Meow"
We are all familiar with the concept of a cat program. The user types something in, it is echoed back to the ...
user46470
36
votes
59
answers
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Is my barcode valid?
An EAN-8 barcode includes 7 digits of information and an 8th checksum digit.
The checksum is calculated by multiplying the digits by 3 and 1 alternately, adding the results, and subtracting from the ...
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44
votes
47
answers
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Is it a balanced number?
A number is balanced if the sum of the digits on each half of the number is equal, so: 1423 is balanced because 1+4 = 2+3, so is:...
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25
votes
67
answers
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Compare two numbers given as strings
I have a problem at work. I need to compare two numbers that come as strings from two different databases. The numbers may come with leading zeroes and/or leading/trailing spaces. So I may have ...
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