diff --git a/src/compiler/compile/render_dom/index.ts b/src/compiler/compile/render_dom/index.ts
index 3b1f873ba5..8e7deb7a78 100644
--- a/src/compiler/compile/render_dom/index.ts
+++ b/src/compiler/compile/render_dom/index.ts
@@ -485,7 +485,7 @@ export default function dom(
 
 					${css.code && b`this.shadowRoot.innerHTML = \`<style>${css.code.replace(/\\/g, '\\\\')}${options.dev ? `\n/*# sourceMappingURL=${css.map.toUrl()} */` : ''}</style>\`;`}
 
-					@init(this, { target: this.shadowRoot, props: ${init_props} }, ${definition}, ${has_create_fragment ? 'create_fragment': 'null'}, ${not_equal}, ${prop_indexes}, ${dirty});
+					@init(this, { target: this.shadowRoot, props: ${init_props} }, ${definition}, ${has_create_fragment ? 'create_fragment' : 'null'}, ${not_equal}, ${prop_indexes}, ${dirty});
 
 					${dev_props_check}
 
@@ -537,7 +537,7 @@ export default function dom(
 				constructor(options) {
 					super(${options.dev && 'options'});
 					${should_add_css && b`if (!@_document.getElementById("${component.stylesheet.id}-style")) ${add_css}();`}
-					@init(this, options, ${definition}, ${has_create_fragment ? 'create_fragment': 'null'}, ${not_equal}, ${prop_indexes}, ${dirty});
+					@init(this, options, ${definition}, ${has_create_fragment ? 'create_fragment' : 'null'}, ${not_equal}, ${prop_indexes}, ${dirty});
 					${options.dev && b`@dispatch_dev("SvelteRegisterComponent", { component: this, tagName: "${name.name}", options, id: create_fragment.name });`}
 
 					${dev_props_check}
diff --git a/src/compiler/compile/render_dom/wrappers/Element/index.ts b/src/compiler/compile/render_dom/wrappers/Element/index.ts
index 269edcfca8..73c75502e3 100644
--- a/src/compiler/compile/render_dom/wrappers/Element/index.ts
+++ b/src/compiler/compile/render_dom/wrappers/Element/index.ts
@@ -321,7 +321,7 @@ export default class ElementWrapper extends Wrapper {
 				literal.quasis.push(state.quasi);
 
 				block.chunks.create.push(
-					b`${node}.${this.can_use_innerhtml ? 'innerHTML': 'textContent'} = ${literal};`
+					b`${node}.${this.can_use_innerhtml ? 'innerHTML' : 'textContent'} = ${literal};`
 				);
 			}
 		} else {
diff --git a/src/compiler/compile/render_dom/wrappers/Slot.ts b/src/compiler/compile/render_dom/wrappers/Slot.ts
index 699363a809..d343cfb201 100644
--- a/src/compiler/compile/render_dom/wrappers/Slot.ts
+++ b/src/compiler/compile/render_dom/wrappers/Slot.ts
@@ -173,7 +173,7 @@ export default class SlotWrapper extends Wrapper {
 			if (${slot}.p && ${renderer.dirty(dynamic_dependencies)}) {
 				@update_slot_spread(${slot}, ${slot_definition}, #ctx, ${renderer.reference('$$scope')}, #dirty, ${get_slot_changes_fn}, ${get_slot_spread_changes_fn}, ${get_slot_context_fn});
 			}
-		`: b`
+		` : b`
 			if (${slot}.p && ${renderer.dirty(dynamic_dependencies)}) {
 				@update_slot(${slot}, ${slot_definition}, #ctx, ${renderer.reference('$$scope')}, #dirty, ${get_slot_changes_fn}, ${get_slot_context_fn});
 			}
diff --git a/src/compiler/parse/state/mustache.ts b/src/compiler/parse/state/mustache.ts
index 33b589948d..ccb2d1d487 100644
--- a/src/compiler/parse/state/mustache.ts
+++ b/src/compiler/parse/state/mustache.ts
@@ -196,7 +196,7 @@ export default function mustache(parser: Parser) {
 
 		if (!parser.eat('}')) {
 			parser.require_whitespace();
-			await_block[is_then ? 'value': 'error'] = read_context(parser);
+			await_block[is_then ? 'value' : 'error'] = read_context(parser);
 			parser.allow_whitespace();
 			parser.eat('}', true);
 		}
@@ -204,7 +204,7 @@ export default function mustache(parser: Parser) {
 		const new_block: TemplateNode = {
 			start,
 			end: null,
-			type: is_then ? 'ThenBlock': 'CatchBlock',
+			type: is_then ? 'ThenBlock' : 'CatchBlock',
 			children: [],
 			skip: false
 		};
diff --git a/src/runtime/motion/spring.ts b/src/runtime/motion/spring.ts
index 8d2056256c..ff625ec41f 100644
--- a/src/runtime/motion/spring.ts
+++ b/src/runtime/motion/spring.ts
@@ -14,7 +14,7 @@ function tick_spring<T>(ctx: TickContext<T>, last_value: T, current_value: T, ta
 		// @ts-ignore
 		const delta = target_value - current_value;
 		// @ts-ignore
-		const velocity = (current_value - last_value) / (ctx.dt||1/60); // guard div by 0
+		const velocity = (current_value - last_value) / (ctx.dt || 1 / 60); // guard div by 0
 		const spring = ctx.opts.stiffness * delta;
 		const damper = ctx.opts.damping * velocity;
 		const acceleration = (spring - damper) * ctx.inv_mass;
@@ -80,7 +80,7 @@ export function spring<T=any>(value?: T, opts: SpringOpts = {}): Spring<T> {
 	let inv_mass_recovery_rate = 0;
 	let cancel_task = false;
 
-	function set(new_value: T, opts: SpringUpdateOpts={}): Promise<void> {
+	function set(new_value: T, opts: SpringUpdateOpts = {}): Promise<void> {
 		target_value = new_value;
 		const token = current_token = {};
 
diff --git a/src/runtime/transition/index.ts b/src/runtime/transition/index.ts
index 7e879cb941..246f3b14fb 100644
--- a/src/runtime/transition/index.ts
+++ b/src/runtime/transition/index.ts
@@ -237,7 +237,7 @@ export function crossfade({ fallback, ...defaults }: CrossfadeParams & {
 			css: (t, u) => `
 				opacity: ${t * opacity};
 				transform-origin: top left;
-				transform: ${transform} translate(${u * dx}px,${u * dy}px) scale(${t + (1-t) * dw}, ${t + (1-t) * dh});
+				transform: ${transform} translate(${u * dx}px,${u * dy}px) scale(${t + (1 - t) * dw}, ${t + (1 - t) * dh});
 			`
 		};
 	}
diff --git a/test/sourcemaps/samples/source-map-generator/_config.js b/test/sourcemaps/samples/source-map-generator/_config.js
index fefb776f33..3cd15d9dda 100644
--- a/test/sourcemaps/samples/source-map-generator/_config.js
+++ b/test/sourcemaps/samples/source-map-generator/_config.js
@@ -6,7 +6,7 @@ export default {
 		style: async ({ content, filename }) =>  {
 			const src = new MagicString(content);
 			const idx = content.indexOf('baritone');
-			src.overwrite(idx, idx+'baritone'.length, 'bar');
+			src.overwrite(idx, idx + 'baritone'.length, 'bar');
 
 			const map = SourceMapGenerator.fromSourceMap(
 				await new SourceMapConsumer(
diff --git a/test/sourcemaps/samples/sourcemap-basename/_config.js b/test/sourcemaps/samples/sourcemap-basename/_config.js
index d50dd882a6..33146af7e7 100644
--- a/test/sourcemaps/samples/sourcemap-basename/_config.js
+++ b/test/sourcemaps/samples/sourcemap-basename/_config.js
@@ -19,7 +19,7 @@ export default {
 	preprocess: [
 		{
 			style: ({ content, filename }) => {
-				const external =`/* Filename from preprocess: ${filename} */` + external_code;
+				const external = `/* Filename from preprocess: ${filename} */` + external_code;
 				return magic_string_bundle([
 					{ code: external, filename: external_relative_filename },
 					{ code: content, filename }