feat:node-modules

node_modules/mathjs/lib/esm/function/utils/isNaN.js

@@ -0,0 +1,58 @@
+import { deepMap } from '../../utils/collection.js';
+import { factory } from '../../utils/factory.js';
+import { isNaNNumber } from '../../plain/number/index.js';
+var name = 'isNaN';
+var dependencies = ['typed'];
+export var createIsNaN = /* #__PURE__ */factory(name, dependencies, _ref => {
+  var {
+    typed
+  } = _ref;
+  /**
+   * Test whether a value is NaN (not a number).
+   * The function supports types `number`, `BigNumber`, `Fraction`, `Unit` and `Complex`.
+   *
+   * The function is evaluated element-wise in case of Array or Matrix input.
+   *
+   * Syntax:
+   *
+   *     math.isNaN(x)
+   *
+   * Examples:
+   *
+   *    math.isNaN(3)                     // returns false
+   *    math.isNaN(NaN)                   // returns true
+   *    math.isNaN(0)                     // returns false
+   *    math.isNaN(math.bignumber(NaN))   // returns true
+   *    math.isNaN(math.bignumber(0))     // returns false
+   *    math.isNaN(math.fraction(-2, 5))  // returns false
+   *    math.isNaN('-2')                  // returns false
+   *    math.isNaN([2, 0, -3, NaN])       // returns [false, false, false, true]
+   *
+   * See also:
+   *
+   *    isNumeric, isNegative, isPositive, isZero, isInteger
+   *
+   * @param {number | BigNumber | bigint | Fraction | Unit | Array | Matrix} x  Value to be tested
+   * @return {boolean}  Returns true when `x` is NaN.
+   *                    Throws an error in case of an unknown data type.
+   */
+  return typed(name, {
+    number: isNaNNumber,
+    BigNumber: function BigNumber(x) {
+      return x.isNaN();
+    },
+    bigint: function bigint(x) {
+      return false;
+    },
+    Fraction: function Fraction(x) {
+      return false;
+    },
+    Complex: function Complex(x) {
+      return x.isNaN();
+    },
+    Unit: function Unit(x) {
+      return Number.isNaN(x.value);
+    },
+    'Array | Matrix': typed.referToSelf(self => x => deepMap(x, self))
+  });
+});