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javasortingcountalphabetical

How do I count the characters in a string and then sort them alphabetically?

I am taking input from the user. I have that bit done. The input can be a word or even a sentence saved as a string. What I want to do is then count the number of times the letters appear in the input, and also have it sorted alphabetically.

Example input: 

learning to program

Example output:

a 2
e 1
g 2
i 1
Solution

  • How to count occurences in a string is explained here: https://stackoverflow.com/a/881111/8935250 I tried to mimic your example output in this code fiddle.

    Methods I used: Sort Map

    const string = "learning to program"

function count(character) {
	return string.split(character).length
}

map = string.split("").map(c => {
	return {c, count: count(c)}
})

map.sort((a,b) => b.count - a.count)

console.log(map)

    console.log(string.split("").sort((a,b) => string.split(b).length - string.split(a).length))

    should also do the job but does not show the occurrences.