61 lines
1.8 KiB
JavaScript
61 lines
1.8 KiB
JavaScript
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports.createSetSize = void 0;
|
|
|
|
var _array = require("../../utils/array.js");
|
|
|
|
var _factory = require("../../utils/factory.js");
|
|
|
|
var name = 'setSize';
|
|
var dependencies = ['typed', 'compareNatural'];
|
|
var createSetSize = /* #__PURE__ */(0, _factory.factory)(name, dependencies, function (_ref) {
|
|
var typed = _ref.typed,
|
|
compareNatural = _ref.compareNatural;
|
|
|
|
/**
|
|
* Count the number of elements of a (multi)set. When a second parameter is 'true', count only the unique values.
|
|
* A multi-dimension array will be converted to a single-dimension array before the operation.
|
|
*
|
|
* Syntax:
|
|
*
|
|
* math.setSize(set)
|
|
* math.setSize(set, unique)
|
|
*
|
|
* Examples:
|
|
*
|
|
* math.setSize([1, 2, 2, 4]) // returns 4
|
|
* math.setSize([1, 2, 2, 4], true) // returns 3
|
|
*
|
|
* See also:
|
|
*
|
|
* setUnion, setIntersect, setDifference
|
|
*
|
|
* @param {Array | Matrix} a A multiset
|
|
* @return {number} The number of elements of the (multi)set
|
|
*/
|
|
return typed(name, {
|
|
'Array | Matrix': function ArrayMatrix(a) {
|
|
return Array.isArray(a) ? (0, _array.flatten)(a).length : (0, _array.flatten)(a.toArray()).length;
|
|
},
|
|
'Array | Matrix, boolean': function ArrayMatrixBoolean(a, unique) {
|
|
if (unique === false || a.length === 0) {
|
|
return Array.isArray(a) ? (0, _array.flatten)(a).length : (0, _array.flatten)(a.toArray()).length;
|
|
} else {
|
|
var b = (0, _array.flatten)(Array.isArray(a) ? a : a.toArray()).sort(compareNatural);
|
|
var count = 1;
|
|
|
|
for (var i = 1; i < b.length; i++) {
|
|
if (compareNatural(b[i], b[i - 1]) !== 0) {
|
|
count++;
|
|
}
|
|
}
|
|
|
|
return count;
|
|
}
|
|
}
|
|
});
|
|
});
|
|
exports.createSetSize = createSetSize; |