diff --git a/package.json b/package.json
index 47a25368..ce333943 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
         "lint:fix": "eslint --fix src/js",
         "remark": "remark -f --use 'validate-links=repository:\"sampotts/plyr\"' '{,!(node_modules),.?**/}*.md'",
         "deploy": "yarn lint && gulp version && gulp build && gulp deploy",
-        "prettier": "prettier --write ./src/js/*.js"
+        "format": "prettier --write ./src/js/**/*.js"
     },
     "devDependencies": {
         "ansi-colors": "^4.1.1",
diff --git a/src/js/plugins/preview-thumbnails.js b/src/js/plugins/preview-thumbnails.js
index 290ce949..60033331 100644
--- a/src/js/plugins/preview-thumbnails.js
+++ b/src/js/plugins/preview-thumbnails.js
@@ -628,7 +628,10 @@ class PreviewThumbnails {
     }
 
     determineContainerAutoSizing() {
-        if (this.elements.thumb.imageContainer.clientHeight > 20 || this.elements.thumb.imageContainer.clientWidth > 20) {
+        if (
+            this.elements.thumb.imageContainer.clientHeight > 20 ||
+            this.elements.thumb.imageContainer.clientWidth > 20
+        ) {
             // This will prevent auto sizing in this.setThumbContainerSizeAndPos()
             this.sizeSpecifiedInCSS = true;
         }
@@ -640,10 +643,16 @@ class PreviewThumbnails {
             const thumbWidth = Math.floor(this.thumbContainerHeight * this.thumbAspectRatio);
             this.elements.thumb.imageContainer.style.height = `${this.thumbContainerHeight}px`;
             this.elements.thumb.imageContainer.style.width = `${thumbWidth}px`;
-        } else if (this.elements.thumb.imageContainer.clientHeight > 20 && this.elements.thumb.imageContainer.clientWidth < 20) {
+        } else if (
+            this.elements.thumb.imageContainer.clientHeight > 20 &&
+            this.elements.thumb.imageContainer.clientWidth < 20
+        ) {
             const thumbWidth = Math.floor(this.elements.thumb.imageContainer.clientHeight * this.thumbAspectRatio);
             this.elements.thumb.imageContainer.style.width = `${thumbWidth}px`;
-        } else if (this.elements.thumb.imageContainer.clientHeight < 20 && this.elements.thumb.imageContainer.clientWidth > 20) {
+        } else if (
+            this.elements.thumb.imageContainer.clientHeight < 20 &&
+            this.elements.thumb.imageContainer.clientWidth > 20
+        ) {
             const thumbHeight = Math.floor(this.elements.thumb.imageContainer.clientWidth / this.thumbAspectRatio);
             this.elements.thumb.imageContainer.style.height = `${thumbHeight}px`;
         }
diff --git a/src/js/plugins/vimeo.js b/src/js/plugins/vimeo.js
index 010cf5f7..8f999153 100644
--- a/src/js/plugins/vimeo.js
+++ b/src/js/plugins/vimeo.js
@@ -201,13 +201,16 @@ const vimeo = {
                 return speed;
             },
             set(input) {
-                player.embed.setPlaybackRate(input).then(() => {
-                    speed = input;
-                    triggerEvent.call(player, player.media, 'ratechange');
-                }).catch(() => {
-                    // Cannot set Playback Rate, Video is probably not on Pro account
-                    player.options.speed = [1];
-                });
+                player.embed
+                    .setPlaybackRate(input)
+                    .then(() => {
+                        speed = input;
+                        triggerEvent.call(player, player.media, 'ratechange');
+                    })
+                    .catch(() => {
+                        // Cannot set Playback Rate, Video is probably not on Pro account
+                        player.options.speed = [1];
+                    });
             },
         });
 
diff --git a/src/js/utils/elements.js b/src/js/utils/elements.js
index bdf18bfd..acff0dd9 100644
--- a/src/js/utils/elements.js
+++ b/src/js/utils/elements.js
@@ -221,7 +221,7 @@ export function hasClass(element, className) {
 
 // Element matches selector
 export function matches(element, selector) {
-    const {prototype} = Element;
+    const { prototype } = Element;
 
     function match() {
         return Array.from(document.querySelectorAll(selector)).includes(this);
diff --git a/src/js/utils/events.js b/src/js/utils/events.js
index 31571b2d..48300b6b 100644
--- a/src/js/utils/events.js
+++ b/src/js/utils/events.js
@@ -90,7 +90,7 @@ export function triggerEvent(element, type = '', bubbles = false, detail = {}) {
     // Create and dispatch the event
     const event = new CustomEvent(type, {
         bubbles,
-        detail: { ...detail, plyr: this,},
+        detail: { ...detail, plyr: this },
     });
 
     // Dispatch the event