From fc14509c5473ee8a0a9834da7341e3f4af1f623c Mon Sep 17 00:00:00 2001
From: Shinigami92 <chrissi92@hotmail.de>
Date: Tue, 5 Apr 2022 15:07:15 +0200
Subject: [PATCH 1/3] feat: precise number calculation

---
 package.json | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/package.json b/package.json
index 54aec8f7778..1095255bba1 100644
--- a/package.json
+++ b/package.json
@@ -87,6 +87,14 @@
       "eslint --ext .ts"
     ]
   },
+  "peerDependencies": {
+    "decimal.js": "~10.3.1"
+  },
+  "peerDependenciesMeta": {
+    "decimal.js": {
+      "optional": true
+    }
+  },
   "devDependencies": {
     "@types/markdown-it": "~12.2.3",
     "@types/node": "~16.11.26",

From 2b77458895b0e0a9580077b02f2ba43db9c3a994 Mon Sep 17 00:00:00 2001
From: Shinigami92 <chrissi92@hotmail.de>
Date: Tue, 5 Apr 2022 15:59:06 +0200
Subject: [PATCH 2/3] feat: precise number calculation

---
 src/datatype.ts | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/src/datatype.ts b/src/datatype.ts
index 50bcb17fda8..5037751466b 100644
--- a/src/datatype.ts
+++ b/src/datatype.ts
@@ -1,3 +1,5 @@
+// @ts-ignore: decimal.js is an optional peer dependency
+import type { Decimal } from 'decimal.js';
 import type { Faker } from '.';
 import { deprecated } from './internal/deprecated';
 
@@ -5,6 +7,8 @@ import { deprecated } from './internal/deprecated';
  * Module to generate various primitive values and data types.
  */
 export class Datatype {
+  private Decimal: typeof Decimal | null = null;
+
   constructor(private readonly faker: Faker) {
     // Bind `this` so namespaced is working correctly
     for (const name of Object.getOwnPropertyNames(Datatype.prototype)) {
@@ -13,6 +17,15 @@ export class Datatype {
       }
       this[name] = this[name].bind(this);
     }
+
+    // @ts-ignore: decimal.js is an optional peer dependency
+    import('decimal.js')
+      .then((module) => {
+        this.Decimal = module.default;
+      })
+      .catch(() => {
+        // Ignore
+      });
   }
 
   /**
@@ -57,6 +70,13 @@ export class Datatype {
     );
 
     // Workaround problem in float point arithmetics for e.g. 6681493 / 0.01
+    if (this.Decimal) {
+      const decimalPrecision = new this.Decimal(1)
+        .dividedBy(precision)
+        .toNumber();
+      return randomNumber / decimalPrecision;
+    }
+
     return randomNumber / (1 / precision);
   }
 

From 882920a6e9cd6a3dbe14d6c8ead61e69874cf352 Mon Sep 17 00:00:00 2001
From: Shinigami92 <chrissi92@hotmail.de>
Date: Tue, 5 Apr 2022 16:48:55 +0200
Subject: [PATCH 3/3] feat: precise number calculation

---
 package.json    |  8 --------
 src/datatype.ts | 29 ++++++++---------------------
 2 files changed, 8 insertions(+), 29 deletions(-)

diff --git a/package.json b/package.json
index 1095255bba1..54aec8f7778 100644
--- a/package.json
+++ b/package.json
@@ -87,14 +87,6 @@
       "eslint --ext .ts"
     ]
   },
-  "peerDependencies": {
-    "decimal.js": "~10.3.1"
-  },
-  "peerDependenciesMeta": {
-    "decimal.js": {
-      "optional": true
-    }
-  },
   "devDependencies": {
     "@types/markdown-it": "~12.2.3",
     "@types/node": "~16.11.26",
diff --git a/src/datatype.ts b/src/datatype.ts
index 5037751466b..837239309ff 100644
--- a/src/datatype.ts
+++ b/src/datatype.ts
@@ -1,5 +1,3 @@
-// @ts-ignore: decimal.js is an optional peer dependency
-import type { Decimal } from 'decimal.js';
 import type { Faker } from '.';
 import { deprecated } from './internal/deprecated';
 
@@ -7,7 +5,9 @@ import { deprecated } from './internal/deprecated';
  * Module to generate various primitive values and data types.
  */
 export class Datatype {
-  private Decimal: typeof Decimal | null = null;
+  public preciseNumberDivider:
+    | ((value: number, precision: number) => number)
+    | null = null;
 
   constructor(private readonly faker: Faker) {
     // Bind `this` so namespaced is working correctly
@@ -17,15 +17,6 @@ export class Datatype {
       }
       this[name] = this[name].bind(this);
     }
-
-    // @ts-ignore: decimal.js is an optional peer dependency
-    import('decimal.js')
-      .then((module) => {
-        this.Decimal = module.default;
-      })
-      .catch(() => {
-        // Ignore
-      });
   }
 
   /**
@@ -69,15 +60,11 @@ export class Datatype {
       this.faker.mersenne.rand(max / precision, min / precision)
     );
 
-    // Workaround problem in float point arithmetics for e.g. 6681493 / 0.01
-    if (this.Decimal) {
-      const decimalPrecision = new this.Decimal(1)
-        .dividedBy(precision)
-        .toNumber();
-      return randomNumber / decimalPrecision;
-    }
-
-    return randomNumber / (1 / precision);
+    return (
+      this.preciseNumberDivider?.(randomNumber, precision) ??
+      // Workaround problem in float point arithmetics for e.g. 6681493 / 0.01
+      randomNumber / (1 / precision)
+    );
   }
 
   /**