從一個(gè)對象數(shù)組，我需要?jiǎng)?chuàng)建另一個(gè)包含一些字段的對象數(shù)組。在我的 organicResults 數(shù)組中，我有以下項(xiàng)目我只需要新數(shù)組中的標(biāo)題和 url。我嘗試了以下 const organicResults = [ {      title: '21 Excel Tips and Tricks to Boost Business | Process Street ...',      url: 'https://www.process.st/excel-tips-and-tricks/',      displayedUrl: 'www.process.st ? excel-tips-and-tricks',      description: 'Mar 10, 2017 — 90% of businesses use Excel in their operations. Learn these Excel tips and tricks to maximize your efficiency and automate your processes!',      siteLinks: [],      productInfo: {}    },    {      title: 'Microsoft Excel Tips & Tricks | The Training Lady',      url: 'https://www.thetraininglady.com/microsoft-excel/',      displayedUrl: 'www.thetraininglady.com ? microsoft-excel',      description: 'When you are entering data in Excel you may want to ensure your data is entered in a consistent way. Maybe you have multiple people working on the same file ...',      siteLinks: [],      productInfo: {}    },    {      title: 'What are the best Microsoft Excel tips according to you? - Quora',      url: 'https://www.quora.com/What-are-the-best-Microsoft-Excel-tips-according-to-you',      displayedUrl: 'www.quora.com ? What-are-the-best-Microsoft-Excel-tips...',      description: 'Originally Answered: What is the best microsoft excel tip according to you? Below is a listing of all the major shortcut keys usable in Microsoft Excel.64 answers',      siteLinks: [],      productInfo: {}    },]    let sitesInfo = organicResults.map(result => ({        title: result.title,        url : result.url,        description: result.description            }))    console.log(sitesInfo)輸出為空。我哪里做錯(cuò)了？