feat: Object.isNaturalNumber an Object.isNaturalNumberValue

object/index.js

@@ -31,6 +31,8 @@ module.exports = {
 	isCopyDeep: require("./is-copy-deep"),
 	isEmpty: require("./is-empty"),
 	isFiniteNumber: require("./is-finite-number"),
+	isNaturalNumber: require("./is-natural-number"),
+	isNaturalNumberValue: require("./is-natural-number-value"),
 	isNumberValue: require("./is-number-value"),
 	isObject: require("./is-object"),
 	isPlainFunction: require("./is-plain-function"),

object/is-natural-number-value.js

@@ -0,0 +1,9 @@
+"use strict";
+
+var isNaturalNumber = require("./is-natural-number")
+  , isValue         = require("./is-value");
+
+module.exports = function (arg) {
+	if (!isValue(arg)) return false;
+	return isNaturalNumber(arg);
+};

object/is-natural-number.js

@@ -0,0 +1,7 @@
+"use strict";
+
+var isNatural = require("../number/is-natural");
+
+module.exports = function (arg) {
+	return isNatural(Number(arg));
+};

test/object/is-natural-number-value.js

@@ -0,0 +1,12 @@
+"use strict";
+
+module.exports = function (t, a) {
+	a(t(undefined), false, "Undefined");
+	a(t(null), false, "Null");
+	a(t(2), true, "Number");
+	a(t(-2), false, "Negative");
+	a(t(2.34), false, "Float");
+	a(t("23"), true, "Numeric string");
+	a(t(NaN), false, "NaN");
+	a(t(Infinity), false, "Infinity");
+};

test/object/is-natural-number.js

@@ -0,0 +1,12 @@
+"use strict";
+
+module.exports = function (t, a) {
+	a(t(undefined), false, "Undefined");
+	a(t(null), true, "Null");
+	a(t(2), true, "Number");
+	a(t(-2), false, "Negative");
+	a(t(2.34), false, "Float");
+	a(t("23"), true, "Numeric string");
+	a(t(NaN), false, "NaN");
+	a(t(Infinity), false, "Infinity");
+};