Use TypeScript for examples

Author: jessealama

examples/bill.js examples/bill.ts

@@ -3,17 +3,21 @@ import { Decimal128 } from "../src/decimal128.mjs";
 const zero = new Decimal128("0");
 const one = new Decimal128("1");
 
-function calculateBill(items, tax) {
-    let taxRate = new Decimal128(tax).add(one);
+interface Item {
+    price: string;
+    count: string;
+}
+
+function calculateBill(items: Item[], tax: string): Decimal128 {
     let total = items.reduce((total, { price, count }) => {
         return total.add(new Decimal128(price).multiply(new Decimal128(count)));
     }, zero);
-    return total.multiply(taxRate);
+    return total.multiply(new Decimal128(tax).add(one));
 }
 
 const items = [
     { price: "1.25", count: "5" },
     { price: "5.00", count: "1" },
 ];
 const tax = "0.0735";
-console.log(calculateBill(items, tax).toString());
+console.log(calculateBill(items, tax).toString({ numDecimalDigits: 2}));

examples/floor.js

@@ -0,0 +1,7 @@
+import { Decimal128 } from "../src/decimal128.mjs";
+
+function floor(d: Decimal128): Decimal128 {
+    return d.round(0, "floor");
+}
+
+export { floor };

examples/floor.mts

@@ -0,0 +1,8 @@
+import { Decimal128 } from "../src/decimal128.mjs";
+
+function normalize(d: Decimal128): string {
+    // Decimal128 object
+    return d.toString({ normalize: true });
+}
+
+export { normalize };

examples/normalize.js

@@ -1,13 +1,9 @@
 import { Decimal128 } from "../src/decimal128.mjs";
 
-const one = new Decimal128("1");
-
-function pow(a, b) {
-    let i = one;
+function pow(a: Decimal128, b: number): Decimal128 {
     let result = a;
-    while (-1 === i.cmp(b)) {
+    for (let i = 0; i < b; i++) {
         result = result.multiply(a);
-        i = i.add(one);
     }
     return result;
 }