if (typeof params === "string") params = stringToBytes(params,ascii); //该方法只适用于utf-8编码和ascii编码 if (params.length%4 != 0) return null; var length = params.length/4*3;if (params[params.length-2] == 61) length -= 2; else if (params[params.length-1] == 61) leng...
(m)=>m.codePointAt(0));}// 来自 https://developer.mozilla.org/en-US/docs/Glossary/Base64#the_unicode_problem.functionbytesToBase64(bytes){constbinString=String.fromCodePoint(...bytes);returnbtoa(bin
isBase64(paramName) check if a string is base64 encoded. isBefore(paramName [, date]) check if the string is a date that's before the specified date. isBoolean(paramName) check if a string is a boolean. isByteLength(paramName, min [, max]) check if the string's length (in bytes...
The atob() method is used to convert the Base64 to a string. Example 2: Encode a String to Base64 Using Base64 Object // program to encode a string to Base64 // create Base64 Object const Base64 = { // private property _keyStr : "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz...
//base64加密//调用方式:Helper.EncodeToBase64(需要加密字符串)publicstaticstringEncodeToBase64(stringdata) {byte[] byteData =Encoding.UTF8.GetBytes(data);returnConvert.ToBase64String(byteData); }//base64解密//调用方式:Helper.DecodeFromBase64(需要解密字符串)publicstaticstringDecodeFromBase64(string...
JavaScript把图像的base64压缩后返回base64String 重点参考了这篇文章:前端JS利用canvas的drawImage()对图片进行压缩 : https://www.cnblogs.com/goloving/p/8260206.html 其实是叫AI ChatGPT帮忙整理的,整理成了一个函数,方便调用,我用过觉得好用,现在记录下来:...
简介: 详谈JavaScript 二进制家族:Blob、File、FileReader、ArrayBuffer、Base64 JavaScript 提供了一些 API 来处理文件或原始文件数据,例如: 1. Blob、ArrayBuffer、File可以分为一类,它们都是数据; 2. fileReader是一种工具,用来读取数据。 一、Blob Blob 全称为 binary large object ,即二进制大对象,它是 ...
conststring=`//<![CDATA[ var theForm = document.forms['ctl00']; if (!theForm) { the...
Title>Call JS 5</PageTitle> <h1>Call JS Example 5</h1> <p> <button @onclick="SetStock">Set Stock</button> </p> @if (stockSymbol is not null) { <p>@stockSymbol price: @price.ToString("c")</p> } @if (result is not null) { <p>@result</p> } @code { private string?
[JSInvokable] public string GetHelloMessage() => $"Hello, {name}!"; [JSInvokable] public string GetWelcomeMessage() => $"Welcome, {name}!"; async ValueTask IAsyncDisposable.DisposeAsync() { if (module is not null) { try { await module.DisposeAsync(); } catch (JSDisconnectedExc...