大约有 34,900 项符合查询结果（耗时：0.0359秒） [XML]
Compare object instances for equality by their attributes
...;>> x == y
True
Note that implementing __eq__ will automatically make instances of your class unhashable, which means they can't be stored in sets and dicts. If you're not modelling an immutable type (i.e. if the attributes foo and bar may change value within the lifetime of your object), th...
Find out a Git branch creator
...
A branch is nothing but a commit pointer. As such, it doesn't track metadata like "who created me." See for yourself. Try cat .git/refs/heads/<branch> in your repository.
That written, if you're really into tracking this information in your repository, check out branch descriptions. ...
How do I make a placeholder for a 'select' box?
I'm using placeholders for text inputs which is working out just fine. But I'd like to use a placeholder for my selectboxes as well. Of course I can just use this code:
...
C# operator overload for `+=`?
I am trying to do operator overloads for += , but I can't. I can only make an operator overload for + .
10 Answers
...
Is there a printf converter to print in binary format?
...
Hacky but works for me:
#define BYTE_TO_BINARY_PATTERN "%c%c%c%c%c%c%c%c"
#define BYTE_TO_BINARY(byte) \
(byte & 0x80 ? '1' : '0'), \
(byte & 0x40 ? '1' : '0'), \
(byte & 0x20 ? '1' : '0'), \
(byte & 0x...
How to replace an item in an array with Javascript?
...exOf(3452);
if (~index) {
items[index] = 1010;
}
Sometimes I even like to write a contains function to abstract this check and make it easier to understand what's going on. What's awesome is this works on arrays and strings both:
var contains = function (haystack, needle) {
return !!~hay...
What's an appropriate HTTP status code to return by a REST API service for a validation failure?
...ailure in my Django / Piston based REST API application.
Having had a look at the HTTP Status Code Registry
I'm not convinced that this is an appropriate code for a validation failure, what do y'all recommend?
...
Representing and solving a maze given an image
...y by controlling sliders in Photoshop in Image -> Adjustments -> Black & White.
Convert image to binary by setting appropriate threshold in Photoshop in Image -> Adjustments -> Threshold.
Make sure threshold is selected right. Use the Magic Wand Tool with 0 tolerance, point sample, c...
insert multiple rows via a php array into mysql
...mile long string and then executing it. I am using the CodeIgniter framework so its functions are also available to me.
12 ...
How to detect the current OS from Gradle
...
Actually, I looked at the Gradle project, and this looks a little cleaner as it uses Ant's existing structure:
import org.apache.tools.ant.taskdefs.condition.Os
task checkWin() << {
if (Os.isFamily(Os.FAMILY_WINDOWS)) {
...