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Remove redundant initial of isArray (#21163)
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behnammodi committed Apr 1, 2021
1 parent 2c9fef3 commit b130a0f
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Showing 28 changed files with 105 additions and 77 deletions.
10 changes: 6 additions & 4 deletions packages/eslint-plugin-react-hooks/src/ExhaustiveDeps.js
Original file line number Diff line number Diff line change
Expand Up @@ -145,6 +145,8 @@ export default {
componentScope = currentScope;
}

const isArray = Array.isArray;

// Next we'll define a few helpers that helps us
// tell if some values don't have to be declared as deps.

Expand All @@ -157,7 +159,7 @@ export default {
// ^^^ true for this reference
// False for everything else.
function isStableKnownHookValue(resolved) {
if (!Array.isArray(resolved.defs)) {
if (!isArray(resolved.defs)) {
return false;
}
const def = resolved.defs[0];
Expand Down Expand Up @@ -226,7 +228,7 @@ export default {
if (
id.type === 'ArrayPattern' &&
id.elements.length === 2 &&
Array.isArray(resolved.identifiers)
isArray(resolved.identifiers)
) {
// Is second tuple value the same reference we're checking?
if (id.elements[1] === resolved.identifiers[0]) {
Expand Down Expand Up @@ -255,7 +257,7 @@ export default {
} else if (name === 'useTransition') {
if (
id.type === 'ArrayPattern' &&
Array.isArray(resolved.identifiers)
isArray(resolved.identifiers)
) {
// Is first tuple value the same reference we're checking?
if (id.elements[0] === resolved.identifiers[0]) {
Expand All @@ -270,7 +272,7 @@ export default {

// Some are just functions that don't reference anything dynamic.
function isFunctionWithoutCapturedValues(resolved) {
if (!Array.isArray(resolved.defs)) {
if (!isArray(resolved.defs)) {
return false;
}
const def = resolved.defs[0];
Expand Down
3 changes: 2 additions & 1 deletion packages/jest-react/src/JestReact.js
Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,7 @@
import {REACT_ELEMENT_TYPE, REACT_FRAGMENT_TYPE} from 'shared/ReactSymbols';

import invariant from 'shared/invariant';
import isArray from 'shared/isArray';

function captureAssertion(fn) {
// Trick to use a Jest matcher inside another Jest matcher. `fn` contains an
Expand Down Expand Up @@ -42,7 +43,7 @@ export function unstable_toMatchRenderedOutput(root, expectedJSX) {
let actualJSX;
if (actualJSON === null || typeof actualJSON === 'string') {
actualJSX = actualJSON;
} else if (Array.isArray(actualJSON)) {
} else if (isArray(actualJSON)) {
if (actualJSON.length === 0) {
actualJSX = null;
} else if (actualJSON.length === 1) {
Expand Down
3 changes: 2 additions & 1 deletion packages/react-devtools-shared/src/backend/renderer.js
Original file line number Diff line number Diff line change
Expand Up @@ -105,6 +105,7 @@ import type {
ElementType,
} from 'react-devtools-shared/src/types';
import is from 'shared/objectIs';
import isArray from 'shared/isArray';

type getDisplayNameForFiberType = (fiber: Fiber) => string | null;
type getTypeSymbolType = (type: any) => Symbol | number;
Expand Down Expand Up @@ -1137,7 +1138,7 @@ export function attach(
memoizedState.hasOwnProperty('create') &&
memoizedState.hasOwnProperty('destroy') &&
memoizedState.hasOwnProperty('deps') &&
(memoizedState.deps === null || Array.isArray(memoizedState.deps)) &&
(memoizedState.deps === null || isArray(memoizedState.deps)) &&
memoizedState.hasOwnProperty('next')
);
}
Expand Down
11 changes: 6 additions & 5 deletions packages/react-devtools-shared/src/backend/utils.js
Original file line number Diff line number Diff line change
Expand Up @@ -9,6 +9,7 @@

import {copy} from 'clipboard-js';
import {dehydrate} from '../hydration';
import isArray from 'shared/isArray';

import type {DehydratedData} from 'react-devtools-shared/src/devtools/views/Components/types';

Expand Down Expand Up @@ -61,9 +62,9 @@ export function copyWithDelete(
index: number = 0,
): Object | Array<any> {
const key = path[index];
const updated = Array.isArray(obj) ? obj.slice() : {...obj};
const updated = isArray(obj) ? obj.slice() : {...obj};
if (index + 1 === path.length) {
if (Array.isArray(updated)) {
if (isArray(updated)) {
updated.splice(((key: any): number), 1);
} else {
delete updated[key];
Expand All @@ -84,12 +85,12 @@ export function copyWithRename(
index: number = 0,
): Object | Array<any> {
const oldKey = oldPath[index];
const updated = Array.isArray(obj) ? obj.slice() : {...obj};
const updated = isArray(obj) ? obj.slice() : {...obj};
if (index + 1 === oldPath.length) {
const newKey = newPath[index];
// $FlowFixMe number or string is fine here
updated[newKey] = updated[oldKey];
if (Array.isArray(updated)) {
if (isArray(updated)) {
updated.splice(((oldKey: any): number), 1);
} else {
delete updated[oldKey];
Expand All @@ -111,7 +112,7 @@ export function copyWithSet(
return value;
}
const key = path[index];
const updated = Array.isArray(obj) ? obj.slice() : {...obj};
const updated = isArray(obj) ? obj.slice() : {...obj};
// $FlowFixMe number or string is fine here
updated[key] = copyWithSet(obj[key], path, value, index + 1);
return updated;
Expand Down
7 changes: 4 additions & 3 deletions packages/react-dom/src/client/ReactDOMSelect.js
Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,7 @@ import {getCurrentFiberOwnerNameInDevOrNull} from 'react-reconciler/src/ReactCur

import {checkControlledValueProps} from '../shared/ReactControlledValuePropTypes';
import {getToStringValue, toString} from './ToStringValue';
import isArray from 'shared/isArray';

let didWarnValueDefaultValue;

Expand Down Expand Up @@ -45,15 +46,15 @@ function checkSelectPropTypes(props) {
if (props[propName] == null) {
continue;
}
const isArray = Array.isArray(props[propName]);
if (props.multiple && !isArray) {
const propNameIsArray = isArray(props[propName]);
if (props.multiple && !propNameIsArray) {
console.error(
'The `%s` prop supplied to <select> must be an array if ' +
'`multiple` is true.%s',
propName,
getDeclarationErrorAddendum(),
);
} else if (!props.multiple && isArray) {
} else if (!props.multiple && propNameIsArray) {
console.error(
'The `%s` prop supplied to <select> must be a scalar ' +
'value if `multiple` is false.%s',
Expand Down
4 changes: 2 additions & 2 deletions packages/react-dom/src/client/ReactDOMTextarea.js
Original file line number Diff line number Diff line change
Expand Up @@ -8,12 +8,12 @@
*/

import invariant from 'shared/invariant';
import isArray from 'shared/isArray';

import {checkControlledValueProps} from '../shared/ReactControlledValuePropTypes';
import {getCurrentFiberOwnerNameInDevOrNull} from 'react-reconciler/src/ReactCurrentFiber';
import {getToStringValue, toString} from './ToStringValue';
import type {ToStringValue} from './ToStringValue';

import {disableTextareaChildren} from 'shared/ReactFeatureFlags';

let didWarnValDefaultVal = false;
Expand Down Expand Up @@ -100,7 +100,7 @@ export function initWrapperState(element: Element, props: Object) {
defaultValue == null,
'If you supply `defaultValue` on a <textarea>, do not pass children.',
);
if (Array.isArray(children)) {
if (isArray(children)) {
invariant(
children.length <= 1,
'<textarea> can only have at most one child.',
Expand Down
3 changes: 1 addition & 2 deletions packages/react-dom/src/server/ReactDOMServerFormatConfig.js
Original file line number Diff line number Diff line change
Expand Up @@ -46,8 +46,7 @@ import hyphenateStyleName from '../shared/hyphenateStyleName';
import invariant from 'shared/invariant';
import hasOwnProperty from 'shared/hasOwnProperty';
import sanitizeURL from '../shared/sanitizeURL';

const isArray = Array.isArray;
import isArray from 'shared/isArray';

// Per response, global state that is not contextual to the rendering subtree.
export type ResponseState = {
Expand Down
11 changes: 6 additions & 5 deletions packages/react-dom/src/server/ReactPartialRenderer.js
Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,7 @@ import type {ReactProvider, ReactContext} from 'shared/ReactTypes';

import * as React from 'react';
import invariant from 'shared/invariant';
import isArray from 'shared/isArray';
import getComponentNameFromType from 'shared/getComponentNameFromType';
import {describeUnknownElementTypeFrameInDEV} from 'shared/ReactComponentStackFrame';
import ReactSharedInternals from 'shared/ReactSharedInternals';
Expand Down Expand Up @@ -1438,7 +1439,7 @@ class ReactDOMServerRenderer {
defaultValue == null,
'If you supply `defaultValue` on a <textarea>, do not pass children.',
);
if (Array.isArray(textareaChildren)) {
if (isArray(textareaChildren)) {
invariant(
textareaChildren.length <= 1,
'<textarea> can only have at most one child.',
Expand Down Expand Up @@ -1467,14 +1468,14 @@ class ReactDOMServerRenderer {
if (props[propName] == null) {
continue;
}
const isArray = Array.isArray(props[propName]);
if (props.multiple && !isArray) {
const propNameIsArray = isArray(props[propName]);
if (props.multiple && !propNameIsArray) {
console.error(
'The `%s` prop supplied to <select> must be an array if ' +
'`multiple` is true.',
propName,
);
} else if (!props.multiple && isArray) {
} else if (!props.multiple && propNameIsArray) {
console.error(
'The `%s` prop supplied to <select> must be a scalar ' +
'value if `multiple` is false.',
Expand Down Expand Up @@ -1515,7 +1516,7 @@ class ReactDOMServerRenderer {
value = optionChildren;
}
selected = false;
if (Array.isArray(selectValue)) {
if (isArray(selectValue)) {
// multiple
for (let j = 0; j < selectValue.length; j++) {
if ('' + selectValue[j] === value) {
Expand Down
7 changes: 4 additions & 3 deletions packages/react-dom/src/test-utils/ReactTestUtils.js
Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,7 @@ import {
rethrowCaughtError,
invokeGuardedCallbackAndCatchFirstError,
} from 'shared/ReactErrorUtils';
import isArray from 'shared/isArray';

// Keep in sync with ReactDOM.js, and ReactTestUtilsAct.js:
const EventInternals =
Expand Down Expand Up @@ -97,7 +98,7 @@ function validateClassInstance(inst, methodName) {
}
let received;
const stringified = '' + inst;
if (Array.isArray(inst)) {
if (isArray(inst)) {
received = 'an array';
} else if (inst && inst.nodeType === ELEMENT_NODE && inst.tagName) {
received = 'a DOM node';
Expand Down Expand Up @@ -197,7 +198,7 @@ function scryRenderedDOMComponentsWithClass(root, classNames) {
}
const classList = className.split(/\s+/);

if (!Array.isArray(classNames)) {
if (!isArray(classNames)) {
invariant(
classNames !== undefined,
'TestUtils.scryRenderedDOMComponentsWithClass expects a ' +
Expand Down Expand Up @@ -365,7 +366,7 @@ function executeDispatch(event, listener, inst) {
function executeDispatchesInOrder(event) {
const dispatchListeners = event._dispatchListeners;
const dispatchInstances = event._dispatchInstances;
if (Array.isArray(dispatchListeners)) {
if (isArray(dispatchListeners)) {
for (let i = 0; i < dispatchListeners.length; i++) {
if (event.isPropagationStopped()) {
break;
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,7 @@ import {
deepDiffer,
flattenStyle,
} from 'react-native/Libraries/ReactPrivate/ReactNativePrivateInterface';
import isArray from 'shared/isArray';

import type {AttributeConfiguration} from './ReactNativeTypes';

Expand Down Expand Up @@ -51,7 +52,7 @@ function restoreDeletedValuesInNestedArray(
node: NestedNode,
validAttributes: AttributeConfiguration,
) {
if (Array.isArray(node)) {
if (isArray(node)) {
let i = node.length;
while (i-- && removedKeyCount > 0) {
restoreDeletedValuesInNestedArray(
Expand Down Expand Up @@ -163,12 +164,12 @@ function diffNestedProperty(
return updatePayload;
}

if (!Array.isArray(prevProp) && !Array.isArray(nextProp)) {
if (!isArray(prevProp) && !isArray(nextProp)) {
// Both are leaves, we can diff the leaves.
return diffProperties(updatePayload, prevProp, nextProp, validAttributes);
}

if (Array.isArray(prevProp) && Array.isArray(nextProp)) {
if (isArray(prevProp) && isArray(nextProp)) {
// Both are arrays, we can diff the arrays.
return diffNestedArrayProperty(
updatePayload,
Expand All @@ -178,7 +179,7 @@ function diffNestedProperty(
);
}

if (Array.isArray(prevProp)) {
if (isArray(prevProp)) {
return diffProperties(
updatePayload,
// $FlowFixMe - We know that this is always an object when the input is.
Expand Down Expand Up @@ -212,7 +213,7 @@ function addNestedProperty(
return updatePayload;
}

if (!Array.isArray(nextProp)) {
if (!isArray(nextProp)) {
// Add each property of the leaf.
return addProperties(updatePayload, nextProp, validAttributes);
}
Expand Down Expand Up @@ -242,7 +243,7 @@ function clearNestedProperty(
return updatePayload;
}

if (!Array.isArray(prevProp)) {
if (!isArray(prevProp)) {
// Add each property of the leaf.
return clearProperties(updatePayload, prevProp, validAttributes);
}
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,7 @@

import {invokeGuardedCallbackAndCatchFirstError} from 'shared/ReactErrorUtils';
import invariant from 'shared/invariant';
import isArray from 'shared/isArray';

export let getFiberCurrentPropsFromNode = null;
export let getInstanceFromNode = null;
Expand Down Expand Up @@ -36,14 +37,14 @@ if (__DEV__) {
const dispatchListeners = event._dispatchListeners;
const dispatchInstances = event._dispatchInstances;

const listenersIsArr = Array.isArray(dispatchListeners);
const listenersIsArr = isArray(dispatchListeners);
const listenersLen = listenersIsArr
? dispatchListeners.length
: dispatchListeners
? 1
: 0;

const instancesIsArr = Array.isArray(dispatchInstances);
const instancesIsArr = isArray(dispatchInstances);
const instancesLen = instancesIsArr
? dispatchInstances.length
: dispatchInstances
Expand Down Expand Up @@ -78,7 +79,7 @@ export function executeDispatchesInOrder(event) {
if (__DEV__) {
validateEventDispatches(event);
}
if (Array.isArray(dispatchListeners)) {
if (isArray(dispatchListeners)) {
for (let i = 0; i < dispatchListeners.length; i++) {
if (event.isPropagationStopped()) {
break;
Expand Down Expand Up @@ -106,7 +107,7 @@ function executeDispatchesInOrderStopAtTrueImpl(event) {
if (__DEV__) {
validateEventDispatches(event);
}
if (Array.isArray(dispatchListeners)) {
if (isArray(dispatchListeners)) {
for (let i = 0; i < dispatchListeners.length; i++) {
if (event.isPropagationStopped()) {
break;
Expand Down Expand Up @@ -150,7 +151,7 @@ export function executeDirectDispatch(event) {
const dispatchListener = event._dispatchListeners;
const dispatchInstance = event._dispatchInstances;
invariant(
!Array.isArray(dispatchListener),
!isArray(dispatchListener),
'executeDirectDispatch(...): Invalid `event`.',
);
event.currentTarget = dispatchListener
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,7 @@
*/

import invariant from 'shared/invariant';
import isArray from 'shared/isArray';

/**
* Accumulates items that must not be null or undefined.
Expand All @@ -31,11 +32,11 @@ function accumulate<T>(

// Both are not empty. Warning: Never call x.concat(y) when you are not
// certain that x is an Array (x could be a string with concat method).
if (Array.isArray(current)) {
if (isArray(current)) {
return current.concat(next);
}

if (Array.isArray(next)) {
if (isArray(next)) {
return [current].concat(next);
}

Expand Down
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