Autoformat the code

.vscode/extensions.json

@@ -1,5 +1,6 @@
 {
   "recommendations": [
+    "esbenp.prettier-vscode",
     "ms-azuretools.vscode-azurefunctions",
     "orta.vscode-jest",
     "redhat.vscode-yaml"

README.md

@@ -46,6 +46,10 @@ Clean up. This simply deletes the distribution folder `dist`.
 
     yarn clean
 
+Auto format the files using [Prettier](https://prettier.io/). If you're using VSCode and have the recommended extension installed, this is done automatically when saving files.
+
+    yarn format
+
 ## Continuous Deployment
 
 Continuous deployment is done with [CircleCI](https://circleci.com/), and configured in `config.yml`.

package.json

@@ -13,6 +13,7 @@
   "scripts": {
     "build": "yarn run clean && tsc && copyfiles --up 1 \"src/**/*.json\" dist",
     "clean": "yarn install --frozen-lockfile && rimraf dist",
+    "format": "prettier --write '{./,./src/**/}*.{js,json,ts}'",
     "start": "yarn run build && (cd dist; func host start)",
     "test": "jest --testRegex \"\\.test\\.ts$\"",
     "test-save-results": "cross-env JEST_JUNIT_OUTPUT=test-results/test-results-local.xml jest --ci --runInBand --reporters=default --reporters=jest-junit --testRegex \"\\.test\\.ts$\"",
@@ -31,6 +32,7 @@
     "jest": "24.8.0",
     "jest-junit": "6.4.0",
     "node-fetch": "2.6.0",
+    "prettier": "1.18.2",
     "rimraf": "2.6.3",
     "ts-jest": "24.0.2",
     "typescript": "3.5.1"

yarn.lock

@@ -2987,6 +2987,11 @@ prelude-ls@~1.1.2:
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"
   integrity sha1-IZMqVJ9eUv/ZqCf1cOBL5iqX2lQ=
 
+prettier@1.18.2:
+  version "1.18.2"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.18.2.tgz#6823e7c5900017b4bd3acf46fe9ac4b4d7bda9ea"
+  integrity sha512-OeHeMc0JhFE9idD4ZdtNibzY0+TPHSpSSb9h8FqtP+YnoZZ1sl8Vc9b1sasjfymH3SonAF4QcA2+mzHPhMvIiw==
+
 pretty-format@^24.8.0:
   version "24.8.0"
   resolved "https://registry.yarnpkg.com/pretty-format/-/pretty-format-24.8.0.tgz#8dae7044f58db7cb8be245383b565a963e3c27f2"