document.getElementById('upload').addEventListener('change',function(event){constfile=event.target.files[0];if(file&&file.type==='application/pdf'){constreader=newFileReader();reader.onload=function(e){constpdf
1.使用的插件:jspdf,jspdf-autotable,html2canvas 2.插件介绍: 2.1jspdf:前端生成和导出pdf的插件; 2.2jspdf-autotable:可以更方便的在jspdf中生成表格,可以直接传入表格数据也可以直接传入表格dom标签;jspdf本身也有生成表格的API,只是没有jspdf-autotable方便,可以根据需要选择; 2.3html2canvas:可以截取网页中的do...
Int16Array Int32Array Uint8Array Uint8ClampedArray Uint16Array Uint32Array Die folgenden ES-6-Methoden werden unterstützt: TypedArray.from() TypedArray.of() Anmerkung TypedArray.from()und TypedArray.of() sind neu in JavaScript Runtime 2.0. Die folgenden ES 6-Prototyp-Methoden ...
Uint8Array = TypedArray; window.Uint32Array = TypedArray; window.Int32Array = TypedArray; })(); function _arrayBufferToBase64(buffer) { var binary = ''; var bytes = new Uint8Array(buffer); var len = bytes.byteLength; for (var i = 0; i < len; i++) { binary += String.fromChar...
download = "file.pdf"; link.click(); window.URL.revokeObjectURL(data); link.remove(); } function base64ToArrayBuffer(data) { var binaryString = window.atob(data); var binaryLen = binaryString.length; var bytes = new Uint8Array(binaryLen); for (var i = 0; i < binaryLen; i++)...
newBlob(array[,options])Blob构造函数接受两个参数。第一个参数是数组，成员是字符串或二进制对象，...
Int8Array：1 个字节的有符号整数类型，范围在 -128 ~ 127 之间；Uint8Array：1 个字节的无符号整数...
Blob 用作 URL Blob 转换为 Base64 图片压缩 生成PDF Blob 与 ArrayBuffer 的区别 一、Blob 是什么 Blob(Binary Large Object)表示二进制类型的大对象。在数据库管理系统中,将二进制数据存储为一个单一个体的集合。Blob 通常是影像、声音或多媒体文件。在 JavaScript 中 Blob 类型的对象表示不可变的类似文件对象的...
rgba is an array-like object with length equal to width * height * 4. An array-like object can be a Buffer, Uint8Array, or Array of integers clamped to 0..255. width and height are the dimensions of the image, in pixels. Each "quad" of the RGBA array is structured as:...
A promise which resolves to a Uint8Array containing the bytes of the dataset. GDALDataset.convert(args) Converts raster data between different formats. This is the equivalent of the gdal_translate command. Note: This returns a new GDALDataset object but does not perform any immediate calculation...