diff --git a/numeraljs/numeraljs-tests.ts b/numeraljs/numeraljs-tests.ts
new file mode 100644
index 0000000000..4dadb0c0b9
--- /dev/null
+++ b/numeraljs/numeraljs-tests.ts
@@ -0,0 +1,42 @@
+/// <reference path="numeraljs.d.ts" />
+var valueFormat: string = numeral(1000).format('0,0');
+// '1,000'
+
+var valueUnformat: number = numeral().unformat('($10,000.00)');
+// '-10000'
+
+var value3: Numeral = numeral(1000);
+var added: Numeral = value3.add(10);
+// 1010
+
+var value4: Numeral = numeral(1000);
+var formatValue4a: string = value4.format('0,0');
+// '1,000'
+var formatValue4b: number = value4.value();
+// 1000
+
+var value5: Numeral = numeral();
+value5.set(1000);
+var value5Num: number = value5.value();
+// 1000
+
+var value6: Numeral = numeral(1000);
+var value: number = 100;
+var difference = value6.difference(value);
+// 900
+
+var value7: Numeral = numeral(0);
+numeral.zeroFormat('N/A');
+var zeroString: string = value7.format('0.0')
+// 'N/A'
+
+var a: Numeral = numeral(1000);
+var b: Numeral = numeral(a);
+var c: Numeral = a.clone();
+
+var aVal: number = a.set(2000).value();
+// 2000
+var bVal: number = b.value();
+// 1000
+var cVal: number = c.add(10).value();
+// 1010
diff --git a/numeraljs/numeraljs.d.ts b/numeraljs/numeraljs.d.ts
new file mode 100644
index 0000000000..4733530046
--- /dev/null
+++ b/numeraljs/numeraljs.d.ts
@@ -0,0 +1,46 @@
+// Type definitions for Numeral.js
+// Project: https://github.com/adamwdraper/Numeral-js
+// Definitions by: Vincent Bortone <https://github.com/vbortone/>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+interface NumeralJSStatic {
+	(value?: any): Numeral;
+}
+
+interface NumeralJSLanguage {
+	delimiters: {
+		thousands: string;
+		decimal: string;
+	};
+	abbreviations: {
+		thousand: string;
+		million: string;
+		billion: string;
+		trillion: string;
+	};
+	ordinal(num: number): string;
+	currency: {
+		symbol: string;
+	};
+}
+
+interface Numeral {
+	(value?: any): Numeral;
+	version: string;
+	isNumeral: bool;
+	language(key: string, values?: NumeralJSLanguage): Numeral;
+	zeroFormat(format: string): string;
+	clone(): Numeral;
+	format(inputString: string): string;
+	unformat(inputString: string): number;
+	value(): number;
+	valueOf(): number;
+	set (value: any): Numeral;
+	add(value: any): Numeral;
+	subtract(value: any): Numeral;
+	multiply(value: any): Numeral;
+	divide(value: any): Numeral;
+	difference(value: any): number;
+}
+
+declare var numeral: Numeral;
\ No newline at end of file