CoffeeScript function: Extract unique characters from a string
CoffeeScript Function : Exercise-20 with Solution
Write a CoffeeScript function to extract unique characters from a string.
Example string : "thequickbrownfoxjumpsoverthelazydog"
Expected Output : "thequickbrownfxjmpsvlazydg"
Solution :
HTML Code :
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script src="//jashkenas.github.io/coffee-script/extras/coffee-script.js"></script>
<title>Extract unique characters from a string</title>
</head>
<body>
</body>
</html>
CoffeeScript Code :
unique_char = (str1) ->
str = str1
uniql = ''
x = 0
while x < str.length
if uniql.indexOf(str.charAt(x)) == -1
uniql += str[x]
x++
uniql
console.log unique_char('thequickbrownfoxjumpsoverthelazydog')
Sample Output:
"thequickbrownfxjmpsvlazydg"
Live Demo:
See the Pen coffeescript-exercise-19 by w3resource (@w3resource) on CodePen.
Improve this sample solution and post your code through Disqus.
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