Size of array, object or string
Gets the size of an array, object or string.
- Get type of
val
(array
,object
orstring
). - Use
Array.prototype.length
property for arrays. - Use
length
orsize
value if available or number of keys for objects. - Use
size
of aBlob
object created fromval
for strings.
const size = val => Array.isArray(val) ? val.length : val && typeof val === 'object' ? val.size || val.length || Object.keys(val).length : typeof val === 'string' ? new Blob([val]).size : 0; size([1, 2, 3, 4, 5]); // 5 size('size'); // 4 size({ one: 1, two: 2, three: 3 }); // 3