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25 lut 2016 · You can write to a file with { flag: 'wx' }, and if the file already exists, you will get an Error with { code: 'EEXIST' } and you know that the lock could not be acquired. If I am not mistaken, this operation is atomic.
27 wrz 2022 · In this post, we discussed a method of locking files with Node.js. We covered the basics and reasoning of why controlling resources and files is important, and we then covered an example of file locking in Node.js using proper-lockfile.
options.worksheets. Specifies whether to emit worksheets ('emit') or not ('ignore'). Default is 'emit'. const workbookReader = new ExcelJS.stream.xlsx.WorkbookReader('./file.xlsx'); for await (const worksheetReader of workbookReader) { for await (const row of worksheetReader) { // ...
24 kwi 2021 · In this post we’ll look at how to create XLSX documents in JavaScript with more advanced features such as custom styling and formulas using the xlsx & js-xlsx packages. This works in both NodeJS and React.
29 sie 2023 · This article entails how to password protect an Excel file using Node.js. It has detailed information about setting up the development environment, a list of steps depicting the complete process, and a runnable sample code to encrypt Excel file using Node.js.
21 gru 2022 · ExcelJS is a helpful JavaScript package that acts as Excel workbook manager. This guide will help you read, manipulate and write spreadsheet data to XLSX and JSON.
Export Tutorial. Many modern data sources provide an API to download data in JSON format. Many users prefer to work in spreadsheet software. SheetJS libraries help bridge the gap by translating programmer-friendly JSON to user-friendly workbooks. The goal of this example is to generate a XLSX workbook of US President names and birthdates.
