From 2b7e9d97db5c399c3ca1ee636750fc0a248a4115 Mon Sep 17 00:00:00 2001
From: Christian Ivicevic <mail@christian-ivicevic.com>
Date: Sat, 14 Oct 2023 11:40:04 +0200
Subject: [PATCH] Introduce a static fromNumber function to enable JavaScript
 sending Decimal objects across the boundary

---
 README.md   | 3 ++-
 src/wasm.rs | 9 ++++++++-
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 29a14bb..fe6675a 100644
--- a/README.md
+++ b/README.md
@@ -301,7 +301,8 @@ libraries, this crate can be compiled with `--no-default-features`.
 ### `wasm-bindgen`
 
 Enable [`wasm-bindgen`](https://github.com/rustwasm/wasm-bindgen) support which makes `Decimal` compatible with the
-`wasm_bindgen` attribute macro and exposes a `toNumber()` method for use in JavaScript.
+`wasm_bindgen` attribute macro and exposes `fromNumber()` and `toNumber()` methods to convert between `Decimal` and
+the primitive `number` type across boundaries.
 
 ## Building
 
diff --git a/src/wasm.rs b/src/wasm.rs
index cc6f251..2308354 100644
--- a/src/wasm.rs
+++ b/src/wasm.rs
@@ -1,10 +1,17 @@
-use num_traits::ToPrimitive;
+use num_traits::{FromPrimitive, ToPrimitive};
 use wasm_bindgen::prelude::wasm_bindgen;
 
 use crate::Decimal;
 
 #[wasm_bindgen]
 impl Decimal {
+    /// Returns a new `Decimal` object instance by converting a primitive number.
+    #[wasm_bindgen(js_name = fromNumber)]
+    #[must_use]
+    pub fn from_number(value: f64) -> Option<Decimal> {
+        Decimal::from_f64(value)
+    }
+
     /// Returns the value of this `Decimal` converted to a primitive number.
     #[wasm_bindgen(js_name = toNumber)]
     #[must_use]