Removing lodash

CHANGELOG.md

@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Bump dependencies.
 - Upgrading to Vite `5.x`.
+- Using a `throttle` function without `lodash.throttle`.
 
 ## [4.1.0] - 2022-12-25
 

package.json

@@ -34,7 +34,6 @@
     "@babel/preset-env": "^7.23.6",
     "@babel/preset-typescript": "^7.23.3",
     "@hotwired/stimulus": "^3.2.2",
-    "@types/lodash.throttle": "^4.1.9",
     "autoprefixer": "^10.4.16",
     "np": "^9.2.0",
     "postcss": "^8.4.32",
@@ -48,8 +47,5 @@
   },
   "resolutions": {
     "prettierx": "~0.19.0"
-  },
-  "dependencies": {
-    "lodash.throttle": "^4.1.1"
   }
 }

src/index.ts

@@ -1,5 +1,5 @@
 import { Controller } from '@hotwired/stimulus'
-import { throttle } from 'lodash'
+import { throttle } from './utils'
 
 export default class extends Controller {
   // @ts-ignore
@@ -9,8 +9,8 @@ export default class extends Controller {
   static values = {
     throttleDelay: {
       type: Number,
-      default: 15
-    }
+      default: 15,
+    },
   }
 
   initialize (): void {

src/utils.ts

@@ -0,0 +1,15 @@
+export function throttle (callback: Function, delay: number) {
+  let shouldWait = false
+
+  return (...args) => {
+    if (shouldWait) return
+
+    callback.apply(this, args)
+
+    shouldWait = true
+
+    setTimeout(() => {
+      shouldWait = false
+    }, delay)
+  }
+}

tsconfig.json

@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     "lib": ["dom", "es6"],
-    "types": ["vite/client", "lodash.throttle"],
+    "types": ["vite/client"],
     "skipLibCheck": true,
     "target": "es6",
     "moduleResolution": "node"

vite.config.js

@@ -14,11 +14,10 @@ export default defineConfig(({ mode }) => {
         fileName: 'stimulus-scroll-progress'
       },
       rollupOptions: {
-        external: ['@hotwired/stimulus', 'lodash'],
+        external: ['@hotwired/stimulus'],
         output: {
           globals: {
-            '@hotwired/stimulus': 'Stimulus',
-            lodash: '_'
+            '@hotwired/stimulus': 'Stimulus'
           }
         }
       }

yarn.lock

@@ -1534,18 +1534,6 @@
   dependencies:
     "@types/node" "*"
 
-"@types/lodash.throttle@^4.1.9":
-  version "4.1.9"
-  resolved "https://registry.yarnpkg.com/@types/lodash.throttle/-/lodash.throttle-4.1.9.tgz#f17a6ae084f7c0117bd7df145b379537bc9615c5"
-  integrity sha512-PCPVfpfueguWZQB7pJQK890F2scYKoDUL3iM522AptHWn7d5NQmeS/LTEHIcLr5PaTzl3dK2Z0xSUHHTHwaL5g==
-  dependencies:
-    "@types/lodash" "*"
-
-"@types/lodash@*":
-  version "4.14.202"
-  resolved "https://registry.yarnpkg.com/@types/lodash/-/lodash-4.14.202.tgz#f09dbd2fb082d507178b2f2a5c7e74bd72ff98f8"
-  integrity sha512-OvlIYQK9tNneDlS0VN54LLd5uiPCBOp7gS5Z0f1mjoJYBrtStzgmJBxONW3U6OZqdtNzZPmn9BS/7WI7BFFcFQ==
-
 "@types/minimatch@*":
   version "3.0.3"
   resolved "https://registry.yarnpkg.com/@types/minimatch/-/minimatch-3.0.3.tgz#3dca0e3f33b200fc7d1139c0cd96c1268cadfd9d"
@@ -4184,11 +4172,6 @@ lodash.isequal@^4.5.0:
   resolved "https://registry.yarnpkg.com/lodash.isequal/-/lodash.isequal-4.5.0.tgz#415c4478f2bcc30120c22ce10ed3226f7d3e18e0"
   integrity sha1-QVxEePK8wwEgwizhDtMib30+GOA=
 
-lodash.throttle@^4.1.1:
-  version "4.1.1"
-  resolved "https://registry.yarnpkg.com/lodash.throttle/-/lodash.throttle-4.1.1.tgz#c23e91b710242ac70c37f1e1cda9274cc39bf2f4"
-  integrity sha512-wIkUCfVKpVsWo3JSZlc+8MB5it+2AN5W8J7YVMST30UrvcQNZ1Okbj+rbVniijTWE6FGYy4XJq/rHkas8qJMLQ==
-
 lodash.zip@^4.2.0:
   version "4.2.0"
   resolved "https://registry.yarnpkg.com/lodash.zip/-/lodash.zip-4.2.0.tgz#ec6662e4896408ed4ab6c542a3990b72cc080020"