40 lines
940 B
JavaScript
40 lines
940 B
JavaScript
|
import { factory } from '../../utils/factory.js';
|
||
|
var name = 'count';
|
||
|
var dependencies = ['typed', 'size', 'prod'];
|
||
|
export var createCount = /* #__PURE__ */factory(name, dependencies, _ref => {
|
||
|
var {
|
||
|
typed,
|
||
|
size,
|
||
|
prod
|
||
|
} = _ref;
|
||
|
|
||
|
/**
|
||
|
* Count the number of elements of a matrix, array or string.
|
||
|
*
|
||
|
* Syntax:
|
||
|
*
|
||
|
* math.count(x)
|
||
|
*
|
||
|
* Examples:
|
||
|
*
|
||
|
* math.count('hello world') // returns 11
|
||
|
* const A = [[1, 2, 3], [4, 5, 6]]
|
||
|
* math.count(A) // returns 6
|
||
|
* math.count(math.range(1,6)) // returns 5
|
||
|
*
|
||
|
* See also:
|
||
|
*
|
||
|
* size
|
||
|
*
|
||
|
* @param {string | Array | Matrix} x A matrix or string
|
||
|
* @return {number} An integer with the elements in `x`.
|
||
|
*/
|
||
|
return typed(name, {
|
||
|
string: function string(x) {
|
||
|
return x.length;
|
||
|
},
|
||
|
'Matrix | Array': function MatrixArray(x) {
|
||
|
return prod(size(x));
|
||
|
}
|
||
|
});
|
||
|
});
|