Med Java - java-script:reduce
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2026-04-26T15:46:11+00:00Med Java
https://medjava.ro/
https://medjava.ro/lib/exe/fetch.php?media=wiki:dokuwiki.svgtext/html2025-01-02T18:22:18+00:00Anonymous (anonymous@undisclosed.example.com)find-longest-word-from-a-string
https://medjava.ro/doku.php?id=java-script:reduce:find-longest-word-from-a-string&rev=1735842138&do=diff
Find longest word from a string
/\s+/, which matches one or more whitespace characters
reduce
.reduce((maxWord, word) => {
return word.length > maxWord.length ? word : maxWord;
}, '')
function findLongestWord(string) {
if (typeof string !== 'string' || string.trim().length === 0) {
return '';
}
return string.trim().split(/\s+/).reduce((maxWord, word) => {
return word.length > maxWord.length ? word : maxWord;
}, '');
}
let longestWord = findLongestWord("…text/html2025-01-02T18:22:18+00:00Anonymous (anonymous@undisclosed.example.com)group-people-by-age
https://medjava.ro/doku.php?id=java-script:reduce:group-people-by-age&rev=1735842138&do=diff
Using reduce to group people by age
In this example, the accumulator starts as an empty object {}, and the function is applied to each person object in the people array.
This function is a neat example of how you can use reduce in conjunction with other modern JavaScript features liketext/html2025-01-02T18:22:18+00:00Anonymous (anonymous@undisclosed.example.com)summing-numbers
https://medjava.ro/doku.php?id=java-script:reduce:summing-numbers&rev=1735842138&do=diff
Summing numbers using reduce
const numbers = [1, 2, 3, 4, 5];
const sum = numbers.reduce(function(accumulator, currentValue) {
return accumulator + currentValue;
}, 0);
console.log(sum); // Output: 15