puppeteer/assets/js/dced24c9.add51cd9.js

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puppeteer &gt; JSHandle &gt; evaluateHandle",source:"@site/versioned_docs/version-9.1.1/puppeteer.jshandle.evaluatehandle.md",sourceDirName:".",slug:"/puppeteer.jshandle.evaluatehandle",permalink:"/puppeteer/docs/9.1.1/puppeteer.jshandle.evaluatehandle",editUrl:"https://github.com/facebook/puppeteer/edit/main/website/versioned_docs/version-9.1.1/puppeteer.jshandle.evaluatehandle.md",version:"9.1.1",frontMatter:{},sidebar:"version-9.1.1/docs",previous:{title:"puppeteer.jshandle.evaluate",permalink:"/puppeteer/docs/9.1.1/puppeteer.jshandle.evaluate"},next:{title:"puppeteer.jshandle.executioncontext",permalink:"/puppeteer/docs/9.1.1/puppeteer.jshandle.executioncontext"}},d=[{value:"JSHandle.evaluateHandle() method",id:"jshandleevaluatehandle-method",children:[]},{value:"Parameters",id:"parameters",children:[]},{value:"Remarks",id:"remarks",children:[]}],s={toc:d};function c(e){var t=e.components,n=(0,r.Z)(e,p);return(0,l.kt)("wrapper",(0,a.Z)({},s,n,{components:t,mdxType:"MDXLayout"}),(0,l.kt)("p",null,(0,l.kt)("a",{parentName:"p",href:"/puppeteer/docs/9.1.1/index"},"Home")," ",">"," ",(0,l.kt)("a",{parentName:"p",href:"/puppeteer/docs/9.1.1/puppeteer"},"puppeteer")," ",">"," ",(0,l.kt)("a",{parentName:"p",href:"/puppeteer/docs/9.1.1/puppeteer.jshandle"},"JSHandle")," ",">"," ",(0,l.kt)("a",{parentName:"p",href:"/puppeteer/docs/9.1.1/puppeteer.jshandle.evaluatehandle"},"evaluateHandle")),(0,l.kt)("h2",{id:"jshandleevaluatehandle-method"},"JSHandle.evaluateHandle() method"),(0,l.kt)("p",null,"This method passes this handle as the first argument to ",(0,l.kt)("inlineCode",{parentName:"p"},"pageFunction"),"."),(0,l.kt)("b",null,"Signature:"),(0,l.kt)("pre",null,(0,l.kt)("code",{parentName:"pre",className:"language-typescript"},"evaluateHandle<HandleType extends JSHandle = JSHandle>(pageFunction: EvaluateHandleFn, ...args: SerializableOrJSHandle[]): Promise<HandleType>;\n")),(0,l.kt)("h2",{id:"parameters"},"Parameters"),(0,l.kt)("table",null,(0,l.kt)("thead",{parentName:"table"},(0,l.kt)("tr",{parentName:"thead"},(0,l.kt)("th",{parentName:"tr",align:null},"Parameter"),(0,l.kt)("th",{parentName:"tr",align:null},"Type"),(0,l.kt)("th",{parentName:"tr",align:null},"Description"))),(0,l.kt)("tbody",{parentName:"table"},(0,l.kt)("tr",{parentName:"tbody"},(0,l.kt)("td",{parentName:"tr",align:null},"pageFunction"),(0,l.kt)("td",{parentName:"tr",align:null},(0,l.kt)("a",{parentName:"td",href:"/puppeteer/docs/9.1.1/puppeteer.evaluatehandlefn"},"EvaluateHandleFn")),(0,l.kt)("td",{parentName:"tr",align:null})),(0,l.kt)("tr",{parentName:"tbody"},(0,l.kt)("td",{parentName:"tr",align:null},"args"),(0,l.kt)("td",{parentName:"tr",align:null},(0,l.kt)("a",{parentName:"td",href:"/puppeteer/docs/9.1.1/puppeteer.serializableorjshandle"},"SerializableOrJSHandle"),"[","]"),(0,l.kt)("td",{parentName:"tr",align:null})))),(0,l.kt)("b",null,"Returns:"),(0,l.kt)("p",null,"Promise","<","HandleType",">"),(0,l.kt)("h2",{id:"remarks"},"Remarks"),(0,l.kt)("p",null,"The only difference between ",(0,l.kt)("inlineCode",{parentName:"p"},"jsHandle.evaluate")," and ",(0,l.kt)("inlineCode",{parentName:"p"},"jsHandle.evaluateHandle")," is that ",(0,l.kt)("inlineCode",{parentName:"p"},"jsHandle.evaluateHandle")," returns an in-page object (JSHandle)."),(0,l.kt)("p",null,"If the function passed to ",(0,l.kt)("inlineCode",{parentName:"p"},"jsHandle.evaluateHandle")," returns a Promise, then ",(0,l.kt)("inlineCode",{parentName:"p"},"evaluateHandle.evaluateHandle")," waits for the promise to resolve and returns its value."),(0,l.kt)("p",null,"See ",(0,l.kt)("a",{parentName:"p",href:"/puppeteer/docs/9.1.1/puppeteer.page.evaluatehandle"},"Page.evaluateHandle()")," for more details."))}c.isMDXComponent=!0}}]);