Skip to content

Make most textContent not nullable #1942

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 7 commits into from
Jun 8, 2025
Merged

Make most textContent not nullable #1942

Show file tree
Hide file tree
Changes from 1 commit
Commits
Show all changes
7 commits
Select commit Hold shift + click to select a range
b2a94c4
Make most textContent not nullable
alex-kinokon Mar 20, 2025
df5910b
Merge branch 'microsoft:main' into main
alex-kinokon Mar 31, 2025
205a044
Address feedback
alex-kinokon May 21, 2025
2080060
Merge branch 'microsoft:main' into main
alex-kinokon May 21, 2025
82bf237
Fix CI error
alex-kinokon May 21, 2025
99e0b2f
Apply suggestions
alex-kinokon May 30, 2025
47d94eb
Rename file
alex-kinokon May 30, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
9 changes: 9 additions & 0 deletions baselines/dom.generated.d.ts
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -2908,6 +2908,9 @@ interface Attr extends Node {
readonly specified: boolean;
/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Attr/value) */
value: string;
/** [MDN Reference](https://developer.mozilla.org/en-US/docs/Web/API/Node/textContent) */
get textContent(): string;
set textContent(value: string | null);
}

declare var Attr: {
Expand Down Expand Up @@ -6213,6 +6216,9 @@ interface CharacterData extends Node, ChildNode, NonDocumentTypeChildNode {
replaceData(offset: number, count: number, data: string): void;
/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CharacterData/substringData) */
substringData(offset: number, count: number): string;
/** [MDN Reference](https://developer.mozilla.org/en-US/docs/Web/API/Node/textContent) */
get textContent(): string;
set textContent(value: string | null);
}

declare var CharacterData: {
Expand Down Expand Up @@ -8608,6 +8614,9 @@ interface Element extends Node, ARIAMixin, Animatable, ChildNode, NonDocumentTyp
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/matches)
*/
webkitMatchesSelector(selectors: string): boolean;
/** [MDN Reference](https://developer.mozilla.org/en-US/docs/Web/API/Node/textContent) */
get textContent(): string;
set textContent(value: string | null);
addEventListener<K extends keyof ElementEventMap>(type: K, listener: (this: Element, ev: ElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
removeEventListener<K extends keyof ElementEventMap>(type: K, listener: (this: Element, ev: ElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
Expand Down
9 changes: 9 additions & 0 deletions baselines/ts5.5/dom.generated.d.ts
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -2908,6 +2908,9 @@ interface Attr extends Node {
readonly specified: boolean;
/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/Attr/value) */
value: string;
/** [MDN Reference](https://developer.mozilla.org/en-US/docs/Web/API/Node/textContent) */
get textContent(): string;
set textContent(value: string | null);
}

declare var Attr: {
Expand Down Expand Up @@ -6206,6 +6209,9 @@ interface CharacterData extends Node, ChildNode, NonDocumentTypeChildNode {
replaceData(offset: number, count: number, data: string): void;
/** [MDN Reference](https://developer.mozilla.org/docs/Web/API/CharacterData/substringData) */
substringData(offset: number, count: number): string;
/** [MDN Reference](https://developer.mozilla.org/en-US/docs/Web/API/Node/textContent) */
get textContent(): string;
set textContent(value: string | null);
}

declare var CharacterData: {
Expand Down Expand Up @@ -8599,6 +8605,9 @@ interface Element extends Node, ARIAMixin, Animatable, ChildNode, NonDocumentTyp
* [MDN Reference](https://developer.mozilla.org/docs/Web/API/Element/matches)
*/
webkitMatchesSelector(selectors: string): boolean;
/** [MDN Reference](https://developer.mozilla.org/en-US/docs/Web/API/Node/textContent) */
get textContent(): string;
set textContent(value: string | null);
addEventListener<K extends keyof ElementEventMap>(type: K, listener: (this: Element, ev: ElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
removeEventListener<K extends keyof ElementEventMap>(type: K, listener: (this: Element, ev: ElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
Expand Down
42 changes: 42 additions & 0 deletions inputfiles/addedTypes.jsonc
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,19 @@
]
}
},
"Comment": {
"methods": {
"method": {
"textContent": {
"mdnUrl": "https://developer.mozilla.org/en-US/docs/Web/API/Node/textContent",
"overrideSignatures": [
"get textContent(): string",
"set textContent(value: string | null)"
]
}
}
}
},
"DocumentAndElementEventHandlers": {
"events": {
"event": [
Expand Down Expand Up @@ -786,6 +799,13 @@
]
}
}
},
"textContent": {
"mdnUrl": "https://developer.mozilla.org/en-US/docs/Web/API/Node/textContent",
"overrideSignatures": [
"get textContent(): string",
"set textContent(value: string | null)"
]
}
}
},
Expand Down Expand Up @@ -1196,6 +1216,17 @@
},
"Attr": {
"name": "Attr",
"methods": {
"method": {
"textContent": {
"mdnUrl": "https://developer.mozilla.org/en-US/docs/Web/API/Node/textContent",
"overrideSignatures": [
"get textContent(): string",
"set textContent(value: string | null)"
]
}
}
},
"properties": {
"property": {
"ownerDocument": {
Expand All @@ -1208,6 +1239,17 @@
},
"CharacterData": {
"name": "CharacterData",
"methods": {
"method": {
"textContent": {
"mdnUrl": "https://developer.mozilla.org/en-US/docs/Web/API/Node/textContent",
"overrideSignatures": [
"get textContent(): string",
"set textContent(value: string | null)"
]
}
}
},
"properties": {
"property": {
"ownerDocument": {
Expand Down
26 changes: 26 additions & 0 deletions unittests/files/nodeValue.ts
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,26 @@
declare const assertType: <T>() => <T1>(
_x: T1,
) => StrictEqual<T, T1> extends true
? () => void
: T1 extends T
? { error: "Left side is not assignable to right side" }
: { error: "Right side is not assignable to left side" };

type StrictEqual<X, Y> =
(<T>() => T extends X ? 1 : 2) extends <T>() => T extends Y ? 1 : 2
? true
: false;

const div = document.createElement("div");
assertType<string>()(div.textContent)();
div.textContent = null;

const text = document.createTextNode("hello");
assertType<string>()(text.textContent)();

assertType<string | null>()(document.textContent)();

const type = document.doctype!;
assertType<string | null>()(type.textContent)();

export {};