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What do (lambda) function closures capture?
...lent way is the one recommended by Adrien Plisson. Create a lambda with an extra argument, and set the extra argument's default value to the object you want preserved.
A little more verbose but less hacky would be to create a new scope each time you create the lambda:
>>> adders = [0,1,2,3...
Is Using .NET 4.0 Tuples in my C# Code a Poor Design Decision?
... Couldn't appropriate documentation be useful here? For example, Scala's StringOps (basically a class of "extension methods" for Java's String) has a method parition(Char => Boolean): (String, String) (takes in predicate, returns tuple of 2 strings). It's obvious what the output is (obviously o...
How to force a web browser NOT to cache images
...
Armin Ronacher has the correct idea. The problem is random strings can collide. I would use:
<img src="picture.jpg?1222259157.415" alt="">
Where "1222259157.415" is the current time on the server.
Generate time by Javascript with performance.now() or by Python with time.time...
Autoincrement VersionCode with gradle extra properties
...e release flavor or the debug flavor increase the versionCode. I tried the extra properties, but you can't save them, which means that next time I build it I'm getting the same versionCode.
Any help would be very much appreciated!
...
How to read the output from git diff?
...nclude "cache.h"
#include "walker.h"
-int cmd_http_fetch(int argc, const char **argv, const char *prefix)
+int main(int argc, const char **argv)
{
+ const char *prefix;
struct walker *walker;
int commits_on_stdin = 0;
int commits;
@@ -18,6 +19,8 @@ int cmd_http_fetch...
【HarmonyOS】真机测试ble - HarmonyOS NEXT - 清泛IT社区，为创新赋能！
...:01:15 PM] → SimpleYail 执行
[2:01:15 PM] [YAIL] 解析 YAIL (244 chars)
[2:01:15 PM] [YAIL] 解析得到 1 个顶层表达式
[2:01:15 PM] [YAIL] 执行[0]: (begin ...) len=3
[2:01:15 PM] [YAIL] begin: 2 个子表达式
[2:01:15 PM] [YAIL] begin[1]: (require) len=2
...
Convert integer to binary in C#
...
Your example has an integer expressed as a string. Let's say your integer was actually an integer, and you want to take the integer and convert it to a binary string.
int value = 8;
string binary = Convert.ToString(value, 2);
Which returns 1000.
...
“Keep Me Logged In” - the best approach
...nt
* that user input is always used as the second parameter.
*
* @param string $safe The internal (safe) value to be checked
* @param string $user The user submitted (unsafe) value
*
* @return boolean True if the two strings are identical.
*/
function timingSafeCompare($safe, $user) {
if ...
Extending an Object in Javascript
...t
The TypeScript equivalent looks the same:
interface Person {
name: string,
greet: Function
}
const Person = {
name: 'Anonymous',
greet: function(): void { console.log(`Hi, I am ${this.name}.` }
}
const jack: Person = Object.create(Person)
jack.name = 'Jack'
jack.greet(...
How to replace strings containing slashes with sed?
...one:g
You can use any character as a delimiter that's not part of either string. Or, you could escape it with a backslash:
s/\//foo/
Which would replace / with foo. You'd want to use the escaped backslash in cases where you don't know what characters might occur in the replacement strings (if t...