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Uploading base64 encoded Image to Amazon S3 via Node.js
...e file
buf = Buffer.from(req.body.imageBinary.replace(/^data:image\/\w+;base64,/, ""),'base64')
var data = {
Key: req.body.userId,
Body: buf,
ContentEncoding: 'base64',
ContentType: 'image/jpeg'
};
s3Bucket.putObject(data, function(err, data){
if (err) {
cons...
What is the purpose of base 64 encoding and why it used in HTTP Basic Authentication?
I don't get the Base64 encryption.
7 Answers
7
...
ASP.Net MVC: How to display a byte array image from model
...
Something like this may work...
@{
var base64 = Convert.ToBase64String(Model.ByteArray);
var imgSrc = String.Format("data:image/gif;base64,{0}", base64);
}
<img src="@imgSrc" />
As mentioned in the comments below, please use the above armed with the k...
Secure random token in Node.js
...e method crypto.randomBytes that generates a random Buffer. However, the base64 encoding in node is not url-safe, it includes / and + instead of - and _ . Therefore, the easiest way to generate such token I've found is
...
Inline SVG in CSS
...
Is there any compatibility difference between base64 encoded svg to non-base64? Base64 bloats my css file, I'm thinking in just use inline svgs..
– enapupe
Apr 15 '13 at 13:39
...
How to save an image to localStorage and display it on the next page?
...ed:
Firstly, I grab my image with getElementByID, and save the image as a Base64. Then I save the Base64 string as my localStorage value.
bannerImage = document.getElementById('bannerImg');
imgData = getBase64Image(bannerImage);
localStorage.setItem("imgData", imgData);
Here is the function that...
代码坏味道(总结) - C/C++ - 清泛网 - 专注C/C++及内核技术
...peculative Generality（夸夸其谈未来性）
过多的考虑将来的拓展，有时往往造成更坏的结果。用不上的东西抛弃掉。
14.Temporary Field（令人迷惑的暂时字段）
使用了让人很难理解的临时变量。
15.Message Chains（过度耦合...
ATL COM开发入门（二）（ActiveX/COM组件回调JS） - C/C++ - 清泛网 - 专注C/C++及内核技术
...cript：BeginTiming();"/>
<span id="timing">0</span>
</BODY>
</HTML>
拓展：
ATL中回调js函数并传参的例子，参见《ATL创建的ActiveX(COM组件)实现JS回调》。
源码点此下载，如有问题请点此。
ATL COM ActiveX 入门 JS回调
error C2143:语法错误 : 缺少“;”(在“*”的前面) error C4430:缺少类型说...
...中是不是定义类成员变量时没有包含相应的头文件。
拓展：
.h中定义类对象成员变量必须include头文件；
相反，.h中定义类指针成员变量时可以不用include类的头文件，只需要申明一下（如 class CTest;）即可，链接过程中必须...
error: ISO C++ forbids declaration of \'XXXX\' with no type - C/C++ - 清泛网 - 专注C/C++及内核技术
...ainwindow.h"
class ConfigDialog {
class MainWindow *mainWindow;
};
拓展：class 修饰后，只申明，不分配内存。头文件也可省略不写，但必须是以指针的形式申明。
class Declare;（√）
class Declare *dec;（√）
class Declare dec; （×）C...