0425ebefe7
Cleaned up the current snippets for consistency and minor problems, added multiple tags to most of them, archived a few.
336 B
336 B
countOccurrences
Counts the occurrences of a value in an array.
Use Array.reduce() to increment a counter each time you encounter the specific value inside the array.
const countOccurrences = (arr, val) => arr.reduce((a, v) => (v === val ? a + 1 : a + 0), 0);
countOccurrences([1, 1, 2, 1, 2, 3], 1); // 3