森蓝小程序

utils/calculate/calculate.js

@@ -0,0 +1,28 @@
+var Decimal = require('decimal.js')
+
+const add = function(a, b) {
+	let result = new Decimal(a).add(new Decimal(b));
+	return result.toNumber();
+}
+
+const sub = function(a, b) {
+	let result = new Decimal(a).sub(new Decimal(b));
+	return result.toNumber();
+}
+
+const mul = function(a, b) {
+	let result = new Decimal(a).mul(new Decimal(b));
+	return result.toNumber();
+}
+
+const div = function(a, b) {
+	let result = new Decimal(a).div(new Decimal(b));
+	return result.toNumber();
+}
+
+module.exports = {
+	add,
+	sub,
+	mul,
+	div
+};