问JavaScript -将CSV转换为XLSX (最好不使用库)EN1、按<Ctrl+H>键 2、点击[查找内容] 3、点击...
functioncsvToArray(str,delimiter=","){// slice from start of text to the first \n index// use split to create an array from string by delimiterconstheaders=str.slice(0,str.indexOf("\n")).split(delimiter);// slice from \n index + 1 to the end of the text// use split to creat...
为了更直观地理解字符串、数组、以及它们之间的关系,下面是一个简化的类图,展示了这两者的特性。 Converts toString+length: number+charAt(index: number) : string+split(separator: string) : ArrayArray+length: number+push(element: any) : void+sort() : void 在上述类图中,我们可以看到字符串类与数组类...
url = URL.createObjectURL(blob); link.href = url; link.setAttribute('download', 'data.csv'); document.body.appendChild(link); link.click(); document.body.removeChild(link); } // 将对象数组转换为 CSV 字符串 convertToCSV(objArray: any[]): string { const array = typeof objArray !=...
push(jsonObject) } /* Convert the final array to JSON */ const json = JSON.stringify(csvToJsonResult); console.log(json) 上述代码的输出将根据提供的输入数据而有所不同。 输出: [ { "name": "John", "quote": "Hello World" }, { "name": "Alma", "quote": "Have a nice day" }...
To convert a CSV string to an array: const csvData = "John Doe,30,Male,Software Engineer"; const columnValues = csvData.split(","); console.log(columnValues); // Output: ["John Doe", "30", "Male", "Software Engineer"] JavaScript Copy In this example, the split() method ...
functionconvertStringToMultiArray(str){// Step 1: Split the string into an array of substringsvarsubstrings=str.split(";");// Step 2: Split each substring into a 2D arrayvarmultiArray=substrings.map(function(substring){returnsubstring.split(",");});// Step 3: Convert each element to a...
我想要做的是获取 CSV 的每一行,将其转换为 JavaScript 对象,将它们存储到数组中,然后将数组转换为 JSON 对象。 服务器.js: var http = require('http'); var url = require('url'); var fs = require('fs'); var args = process.argv; var type = args[2] || 'text'; var arr = []; var...
npm install --save csvtojson@latest 在您的 node.js 应用程序中使用它: // require csvtojson var csv = require("csvtojson"); // Convert a csv file with csvtojson csv() .fromFile(csvFilePath) .then(function(jsonArrayObj){ //when parse finished, result will be emitted here. ...
Converts an array of JavaScript objects into the CSV format. You can save the CSV to file or return it as a string. The keys in the first object of the array will be used as column names. Any special characters in the values (such as commas) will be properly escaped. Usage const Ob...