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docs(page): add TypeScript $eval type-hint notes (#6693)

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Ross Wollman 2021-06-01 13:50:31 -07:00 committed by GitHub
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docs/src/api/class-page.md
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@ -1012,6 +1012,8 @@ Examples:
const searchValue = await page.$eval('#search', el => el.value); const searchValue = await page.$eval('#search', el => el.value);
const preloadHref = await page.$eval('link[rel=preload]', el => el.href); const preloadHref = await page.$eval('link[rel=preload]', el => el.href);
const html = await page.$eval('.main-container', (e, suffix) => e.outerHTML + suffix, 'hello'); const html = await page.$eval('.main-container', (e, suffix) => e.outerHTML + suffix, 'hello');
// In TypeScript, this example requires an explicit type annotation (HTMLLinkElement) on el:
const preloadHrefTS = await page.$eval('link[rel=preload]', (el: HTMLLinkElement) => el.href);
``` ```
```java ```java

2
types/types.d.ts vendored
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@ -200,6 +200,8 @@ export interface Page {
* const searchValue = await page.$eval('#search', el => el.value); * const searchValue = await page.$eval('#search', el => el.value);
* const preloadHref = await page.$eval('link[rel=preload]', el => el.href); * const preloadHref = await page.$eval('link[rel=preload]', el => el.href);
* const html = await page.$eval('.main-container', (e, suffix) => e.outerHTML + suffix, 'hello'); * const html = await page.$eval('.main-container', (e, suffix) => e.outerHTML + suffix, 'hello');
* // In TypeScript, this example requires an explicit type annotation (HTMLLinkElement) on el:
* const preloadHrefTS = await page.$eval('link[rel=preload]', (el: HTMLLinkElement) => el.href);
* ``` * ```
* *
* Shortcut for main frame's * Shortcut for main frame's