以下是一个将CSV文件读入对象数组的示例: 代码语言:txt 复制 <!DOCTYPE html> Read CSV to Object Array document.getElementById('fileInput').addEventListener('change', function(event) { const file = event.target.files[0]; const reader = new FileReader(); reader.onload = function(e)...
Create a User-Defined Function to Load CSV to an Array in JavaScript We will use theFileReaderclass to read the required CSV file as a string. To store this into an array, we will use theslice(),split(), andmap()functions. Theslice()function helps return a new array with a portion ...
To convert or parse CSV data into anarray, you need to use JavaScript’sFileReaderclass, which contains a method calledreadAsText()that will read a CSV file data and parse the result as astringtext. TheFileReaderclass is a web API, so this solution only works in the browser. If you ne...
现在,在我的 script.js 文件中,将通过Ajax 调用来读取 CSV 文件,把数据结果转换为 JSON,并将其显示在 HTML 页面上的列表中。 这是用 Jquery append 方法进行调用并显示数据的代码: // read csv file and convert to json format $.ajax({ type: 'GET', url: csv_file_API, dataType: 'text', error...
是一种常见的数据处理操作,可以使用以下步骤实现: 1. 读取csv文件:使用文件读取的方法,例如使用Node.js中的`fs`模块的`readFileSync`函数读取文件内容,并将内容保存为字符串...
bufferString = data.toString(); //Store information for each individual person in an array index. Split it by every newline in the csv file. arr = bufferString.split('\n'); console.log(arr); for (i = 0; i < arr.length; i++) { JSON.stringify(arr[i]); } JSON.parse(arr); ...
readFileSync('username.csv') const array = csv.toString().split('\n'); /* Store the converted result into an array */ const csvToJsonResult = []; /* Store the CSV column headers into seprate variable */ const headers = array[0].split(', ') /* Iterate over the remaning data ...
reader.readAsArrayBuffer(event.target.files[0]); reader.onload = function(event) { var data = new Uint8Array(reader.result); var work_book = XLSX.read(data, { type: 'array' }); var sheet_name = work_book.SheetNames; var sheet_data = XLSX.utils.sheet_to_json(work_book.Sheets[shee...
array: Uint8Array,8位无符号数组; file: 文件的路径(仅nodejs下支持); 2.1 读取本地文件 // 读取本地excel文件 function readWorkbookFromLocalFile(file, callback) { var reader = new FileReader(); reader.readAsBinaryString(file); reader.onload = function(e) { ...
excel JavaScript -将CSV转换为XLSX(最好不使用库)尝试在没有库的情况下手动完成这一点将是相当大的...