rename `derive` to `derived`

site/content/docs/03-run-time.md

@@ -244,21 +244,21 @@ const time = readable(new Date(), set => {
 });
 ```
 
-* `store = derive(a, callback: (a: any) => any)`
+* `store = derived(a, callback: (a: any) => any)`
-* `store = derive(a, callback: (a: any, set: (value: any) => void) => void)`
+* `store = derived(a, callback: (a: any, set: (value: any) => void) => void)`
-* `store = derive([a, ...b], callback: ([a: any, ...b: any[]]) => any)`
+* `store = derived([a, ...b], callback: ([a: any, ...b: any[]]) => any)`
-* `store = derive([a, ...b], callback: ([a: any, ...b: any[]], set: (value: any) => void) => void)`
+* `store = derived([a, ...b], callback: ([a: any, ...b: any[]], set: (value: any) => void) => void)`
 
 ---
 
 Derives a store from one or more other stores. Whenever those dependencies change, the callback runs.
 
-In the simplest version, `derive` takes a single store, and the callback returns a derived value.
+In the simplest version, `derived` takes a single store, and the callback returns a derived value.
 
 ```js
-import { derive } from 'svelte/store';
+import { derived } from 'svelte/store';
 
-const doubled = derive(a, $a => $a * 2);
+const doubled = derived(a, $a => $a * 2);
 ```
 
 ---
@@ -266,9 +266,9 @@ const doubled = derive(a, $a => $a * 2);
 The callback can set a value asynchronously by accepting a second argument, `set`, and calling it when appropriate.
 
 ```js
-import { derive } from 'svelte/store';
+import { derived } from 'svelte/store';
 
-const delayed = derive(a, ($a, set) => {
+const delayed = derived(a, ($a, set) => {
 	setTimeout(() => set($a), 1000);
 });
 ```
@@ -278,11 +278,11 @@ const delayed = derive(a, ($a, set) => {
 In both cases, an array of arguments can be passed as the first argument instead of a single store.
 
 ```js
-import { derive } from 'svelte/store';
+import { derived } from 'svelte/store';
 
-const summed = derive([a, b], ([$a, $b]) => $a + $b);
+const summed = derived([a, b], ([$a, $b]) => $a + $b);
 
-const delayed = derive([a, b], ([$a, $b], set) => {
+const delayed = derived([a, b], ([$a, $b], set) => {
 	setTimeout(() => set($a + $b), 1000);
 });
 ```

site/content/examples/07-stores/03-derived-stores/stores.js

@@ -1,4 +1,4 @@
-import { readable, derive } from 'svelte/store';
+import { readable, derived } from 'svelte/store';
 
 export const time = readable(new Date(), function start(set) {
 	const interval = setInterval(() => {
@@ -12,7 +12,7 @@ export const time = readable(new Date(), function start(set) {
 
 const start = new Date();
 
-export const elapsed = derive(
+export const elapsed = derived(
 	time,
 	$time => Math.round(($time - start) / 1000)
 );

site/content/tutorial/08-stores/04-derived-stores/app-a/stores.js

@@ -1,4 +1,4 @@
-import { readable, derive } from 'svelte/store';
+import { readable, derived } from 'svelte/store';
 
 export const time = readable(new Date(), function start(set) {
 	const interval = setInterval(() => {
@@ -12,7 +12,7 @@ export const time = readable(new Date(), function start(set) {
 
 const start = new Date();
 
-export const elapsed = derive(
+export const elapsed = derived(
 	time,
 	$time => {}
 );

site/content/tutorial/08-stores/04-derived-stores/app-b/stores.js

@@ -1,4 +1,4 @@
-import { readable, derive } from 'svelte/store';
+import { readable, derived } from 'svelte/store';
 
 export const time = readable(new Date(), function start(set) {
 	const interval = setInterval(() => {
@@ -12,7 +12,7 @@ export const time = readable(new Date(), function start(set) {
 
 const start = new Date();
 
-export const elapsed = derive(
+export const elapsed = derived(
 	time,
 	$time => Math.round(($time - start) / 1000)
 );

site/content/tutorial/08-stores/04-derived-stores/text.md

@@ -2,10 +2,10 @@
 title: Derived stores
 ---
 
-You can create a store whose value is based on the value of one or more *other* stores with `derive`. Building on our previous example, we can create a store that derives the time the page has been open:
+You can create a store whose value is based on the value of one or more *other* stores with `derived`. Building on our previous example, we can create a store that derives the time the page has been open:
 
 ```js
-export const elapsed = derive(
+export const elapsed = derived(
 	time,
 	$time => Math.round(($time - start) / 1000)
 );

store.mjs

@@ -39,7 +39,7 @@ export function writable(value, start = noop) {
 	return { set, update, subscribe };
 }
 
-export function derive(stores, fn) {
+export function derived(stores, fn) {
 	const single = !Array.isArray(stores);
 	if (single) stores = [stores];
 

test/runtime/samples/store-assignment-updates/main.svelte

@@ -1,9 +1,9 @@
 <script>
-	import { derive } from 'svelte/store';
+	import { derived } from 'svelte/store';
 
 	export let count;
 
-	const doubled = derive(count, $count => $count * 2);
+	const doubled = derived(count, $count => $count * 2);
 </script>
 
 <button on:click="{() => $count += 1}">count {$count}</button>

test/store/index.js

@@ -1,5 +1,5 @@
 import * as assert from 'assert';
-import { readable, writable, derive, get } from '../../store.js';
+import { readable, writable, derived, get } from '../../store.js';
 
 describe('store', () => {
 	describe('writable', () => {
@@ -100,10 +100,10 @@ describe('store', () => {
 		});
 	});
 
-	describe('derive', () => {
+	describe('derived', () => {
 		it('maps a single store', () => {
 			const a = writable(1);
-			const b = derive(a, n => n * 2);
+			const b = derived(a, n => n * 2);
 
 			const values = [];
 
@@ -123,7 +123,7 @@ describe('store', () => {
 		it('maps multiple stores', () => {
 			const a = writable(2);
 			const b = writable(3);
-			const c = derive(([a, b]), ([a, b]) => a * b);
+			const c = derived(([a, b]), ([a, b]) => a * b);
 
 			const values = [];
 
@@ -143,7 +143,7 @@ describe('store', () => {
 
 		it('passes optional set function', () => {
 			const number = writable(0);
-			const evens = derive(number, (n, set) => {
+			const evens = derived(number, (n, set) => {
 				if (n % 2 === 0) set(n);
 			});
 
@@ -169,9 +169,9 @@ describe('store', () => {
 
 		it('prevents glitches', () => {
 			const lastname = writable('Jekyll');
-			const firstname = derive(lastname, n => n === 'Jekyll' ? 'Henry' : 'Edward');
+			const firstname = derived(lastname, n => n === 'Jekyll' ? 'Henry' : 'Edward');
 
-			const fullname = derive([firstname, lastname], names => names.join(' '));
+			const fullname = derived([firstname, lastname], names => names.join(' '));
 
 			const values = [];