function formatString(str) {
const formatted = str.split(',')
.map(subStr => `${subStr}(${subStr.length})`)
.join(', ');
return formatted;
}
The expected output was "hello(5), world(5), abra(4), carabfa(7), re(2), wrewer(6), rwer(4)".
What are some drawbacks of using '(' + x.length + ')' in this code snippet?
It's quite a challenge to determine the best approach in this situation. Instead of using .join() after .map() following .split(), we can opt for .reduce() like demonstrated in the code snippet below. This method is more efficient, but was speed a crucial factor in the requirements list? Some may prioritize readability and it ultimately comes down to personal style preferences.
const str = 'hello,world,abra,carabfa,re,wrewer,rwer'
const str_ = str.split(',').reduce((res, word) => `${res}${res ? ',' : ''}${word}(${word.length})`, '')
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