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[puppeteer] Add $ExpectType annotations

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This commit is contained in:
Konstantin Simon Maria Möllers
2018-06-20 09:02:38 +02:00
parent b34bd2c863
commit faf255a762
1 changed files with 31 additions and 10 deletions
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types/puppeteer/puppeteer-tests.ts
+31 -10
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@@ -275,16 +275,29 @@ puppeteer.launch().then(async browser => {
const browser = await puppeteer.launch();
const page = await browser.newPage();
await page.goto("https://example.com");
const elementText = await page.$eval('#someElement', (element) => {
return element.innerHTML;
});
const elementText = await page.$eval(
'#someElement',
(
element, // $ExpectType Element
) => {
element.innerHTML; // $ExpectType string
return element.innerHTML;
}
);
elementText; // $ExpectType string
// If one returns a DOM reference, puppeteer will wrap an ElementHandle instead
const someElement: puppeteer.ElementHandle<HTMLDivElement> = await page.$$eval('.someClassName', (elements) => {
console.log(elements.length);
console.log(elements[0].outerHTML);
return elements[3] as HTMLDivElement;
});
const someElement = await page.$$eval(
'.someClassName',
(
elements, // $ExpectType Element[]
) => {
console.log(elements.length);
console.log(elements[0].outerHTML);
return elements[3] as HTMLDivElement;
}
);
someElement; // $ExpectType ElementHandle<HTMLDivElement>
// If one passes an ElementHandle, puppeteer will unwrap its DOM reference instead
await page.$eval('.hello-world', (e, x1: HTMLDivElement) => x1.noWrap, someElement);
@@ -372,6 +385,14 @@ puppeteer.launch().then(async browser => {
(async () => {
const browser = await puppeteer.launch();
const page = await browser.newPage();
const eh: puppeteer.ElementHandle<HTMLTableRowElement> = (await page.$('tr.something'))!;
const index: number = await page.$eval('.demo', (e, x1) => x1.rowIndex, eh);
const eh = await page.$('tr.something') as puppeteer.ElementHandle<HTMLTableRowElement>;
const index = await page.$eval(
'.demo',
(
e, // $ExpectType Element
x1, // $ExpectType HTMLTableRowElement
) => x1.rowIndex,
eh,
);
index; // $ExpectType number
});