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562 B
562 B
splitStringIntoPairs
Instructions
Splits the string into pairs of two characters. If the string contains an odd number of characters then it should replace the missing second character of the final pair with an underscore ('_')
Expected function
function splitStringIntoPairs(str) {
}
Usage
Here is a possible program to test your function :
console.log(splitStringIntoPairs("abc"));
console.log( splitStringIntoPairs("abcdef"));
And its output :
$ node index.js
$ ['ab', 'c_']
$ ['ab', 'cd', 'ef']