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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...
深入理解 x86/x64 的中断体系 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...它将跳到 0x000FE05B 处，这条指令的作用很大：
更新 CS.base 使 processor 变成纯正的 real mode
跳转到低端内存，使之进入 1M 低端区域
前面说过，此时内存中也不存在 BIOS，也就是说 IVT（中断向量表）也是不存在的，中断系统此...
Get Base64 encode file-data from Input Form
...ipt.
The easy way:
The readAsDataURL() method might already encode it as base64 for you. You'll probably need to strip out the beginning stuff (up to the first ,), but that's no biggie. This would take all the fun out though.
The hard way:
If you want to try it the hard way (or it doesn't work),...
Base64: What is the worst possible increase in space usage?
If a server received a base64 string and wanted to check it's length before converting,, say it wanted to always permit the final byte array to be 16KB. How big could a 16KB byte array possibly become when converted to a Base64 string (assuming one byte per character)?
...
How can I set Image source with base64
I want to set the Image source to a base64 source but it does not work:
4 Answers
4
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Python base64 data decode
I have the following piece of base64 encoded data, and I want to use python base64 module to extract information from it. It seems that module does not work. Can anyone tell me how?
...
How to save an HTML5 Canvas as an image on a server?
...ntext.stroke();
</script>
Convert canvas image to URL format (base64)
var dataURL = canvas.toDataURL();
Send it to your server via Ajax
$.ajax({
type: "POST",
url: "script.php",
data: {
imgBase64: dataURL
}
}).done(function(o) {
con...
Hash function that produces short hashes?
...duce a sub-10-character hash? I want to produce reasonably unique ID's but based on message contents, rather than randomly.
...
Adding header for HttpURLConnection
...redentials = "username:password";
String basicAuth = "Basic " + new String(Base64.getEncoder().encode(userCredentials.getBytes()));
myURLConnection.setRequestProperty ("Authorization", basicAuth);
myURLConnection.setRequestMethod("POST");
myURLConnection.setRequestProperty("Content-Type", "applicat...
Best way to create unique token in Rails?
...when using Ruby 1.9 and ActiveRecord):
class ModelName < ActiveRecord::Base
before_create :generate_token
protected
def generate_token
self.token = loop do
random_token = SecureRandom.urlsafe_base64(nil, false)
break random_token unless ModelName.exists?(token: random_to...