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Why do x86-64 instructions on 32-bit registers zero the upper part of the full 64-bit register?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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How to JSON serialize sets?
...de disappeared
updated the call to the parents' default with super()
using base64 to serialize the bytes type into str (because it seems that bytes in python 3 can't be converted to JSON)
from decimal import Decimal
from base64 import b64encode, b64decode
from json import dumps, loads, JSONEncoder...
convert UIImage to NSData
...{
UIImage *snapshot = self.myImageView.image;
[self encodeImageToBase64String:snapshot];
}
call this method for image convert in base 64
-(NSString *)encodeImageToBase64String:(UIImage *)image
{
return [UIImagePNGRepresentation(image) base64EncodedStringWithOptions:N...
Position icons into circle
...e ON the circle */
- let tan = Math.tan(Math.PI/m); /* tangent of half the base angle */
.container(style=`--m: ${m}; --tan: ${+tan.toFixed(2)}`)
- for(let i = 0; i < n_imgs; i++)
a(href='#' style=i - has_mid >= 0 ? `--i: ${i}` : null)
img(src=imgs[i].src alt=imgs[i].alt...
Smallest data URI image possible for a transparent image
...ds (in some browsers).
Shorter (but unstable - 74 bytes)
data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
I would advise using the slightly longer and more stable version as follows:
⇊ Stable ⇊ (but slightly longer - 78 bytes)
data:image/gif;base64,R0lGODlhAQABAI...
I need to securely store a username and password in Python, what are my options?
...s
from pbkdf2 import PBKDF2
from Crypto.Cipher import AES
import os
import base64
import pickle
### Settings ###
saltSeed = 'mkhgts465wef4fwtdd' # MAKE THIS YOUR OWN RANDOM STRING
PASSPHRASE_FILE = './secret.p'
SECRETSDB_FILE = './secrets'
PASSPHRASE_SIZE = 64 # 512-bit passphrase
KEY_SIZE = 32 ...
How to set custom favicon in Express?
... improve performance by skipping disk access.
This module provides an ETag based on the contents of the icon, rather than file system properties.
This module will serve with the most compatible Content-Type.
share
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Install a Windows service using a Windows command prompt?
... answered Jul 26 '12 at 0:29
Base33Base33
2,80122 gold badges2323 silver badges2828 bronze badges
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List of Delphi language features and version in which they were introduced/deprecated
...form (but without additional text for deprecated)
Variant is no longer based on COM but changed to be CLX compatible, COM based variant renamed to OLEVariant
Typed constants cannot be assigned to (Override with {$J+})
Enumerated types can be assigned an explicit value (cf C++);
Interface pr...
BLE协议—广播和扫描 - 创客硬件开发 - 清泛IT社区，为创新赋能！
.../EDR
广播响应包数据格式与广播数据格式一样，可以用于拓展广播数据大小，数据最大同样为31字节。
通常动态数据使用常规广播包发送，固定数据则使用响应包进行发送。广播间隔BLE设备每次广播时，会在3个广播信道（37/38/3...