Removing the largest number from an array
In JavaScript, we can remove the largest value from an array of numbers in two steps: we first need to find that number, then we can filter it from the array.
JavaScript
Read fire tipExclusive OR
JavaScript
Finding values that exist in only one of two arrays is called “XOR”, or “exclusive OR”. It gets us all values that appear in either the first OR the second array, but not both.
// takes two arrays and returns all elements that appear in only one of them
const xor = (first, second) => [
...first.filter(element => !second.includes(element)),
...second.filter(element => !first.includes(element))
]
// `xor` returns all elements that appear in only one of the two arrays
xor([1, 2, 3, 4, 5], [2, 3, 4, 5, 6]) // ⇒ [1, 6]
// an element can appear multiple times, but only in one array
xor(['beep', 'beep', 'boo', 'boo'], ['beep']) // ⇒ ['boo', 'boo']