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26 maj 2014 · I'm using javascript to proccess an excel file. I need to be able to determin if a cell is empty or not. I've tried 4 things and all of them didn't work good. if(cell == null); if(cell == undefined); if(cell == ""); if(!cell); the first three didn't work at all.
24 lut 2021 · You can iterate on non empty columns cells by using. const dobCol = worksheet.getColumn(3); // iterate over all current cells in this column excluding empty cells. dobCol.eachCell({ includeEmpty: false }, function(cell, rowNumber) { ... }); As described in the documentation. edited Feb 25, 2021 at 8:48. Dharman ♦. 32.9k 26 98 145.
21 gru 2022 · ExcelJS is a JavaScript package that acts as an Excel workbook manager. exceljs can read, manipulate and write spreadsheet data and styles to XLSX and JSON, according to its official documentation. It’s reverse-engineered from Excel spreadsheet files as a project.
2 maj 2023 · This article provides code samples that set and get range values, text, or formulas with the Excel JavaScript API. For the complete list of properties and methods that the Range object supports, see Excel.Range class.
Find a string using the Excel JavaScript API. Work with multiple ranges simultaneously in Excel add-ins. Collaborate with us on GitHub. Learn how to use the Excel JavaScript API to find special cells, such as cells with formulas, errors, or numbers.
8 mar 2023 · This article describes how to use the Excel JavaScript API to work with data types. It introduces core concepts that are fundamental to data type development. The valuesAsJson property. The valuesAsJson property (or the singular valueAsJson for NamedItem) is integral to creating data types in Excel.
29 lis 2022 · How to Check for Null in JavaScript with Equality Operators. The equality operators provide the best way to check for null. You can either use the loose/double equality operator (==) or the strict/triple equality operator (===).
