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Get an object properties list in Objective-C
...perties = class_copyPropertyList([self class], &outCount);
for(i = 0; i < outCount; i++) {
objc_property_t property = properties[i];
const char *propName = property_getName(property);
if(propName) {
const char *propType = getPropertyType(property);
...
Ruby on Rails Callback, what is difference between :before_save and :before_create?
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ChowlettChowlett
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28
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How to check size of a file using Bash?
I've got a script that checks for 0-size, but I thought there must be an easier way to check for file sizes instead. I.e. file.txt is normally 100k; how to make a script check if it is less than 90k (including 0), and make it do wget a new copy because the file is corrupt in this case.
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How do I add a submodule to a sub-directory?
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edited Jul 9 '18 at 11:30
mbx
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answered Jan 27 ...
Separation of JUnit classes into special test package?
... IMHO it is very useful for "mainstream" Java projects (I would put about 90% of projects into this category... but the other 10% is still a sizeable minority). It is easy to use if one can accept the Maven conventions; however if not, it makes life a miserable struggle. Maven seems to be difficult ...
Check image width and height before upload with Javascript
...file").change(function (e) {
var file, img;
if ((file = this.files[0])) {
img = new Image();
var objectUrl = _URL.createObjectURL(file);
img.onload = function () {
alert(this.width + " " + this.height);
_URL.revokeObjectURL(objectUrl);
...
How do I accomplish an if/else in mustache.js?
...ops." Yeeeeaaaaaa....
– boxed
Nov 10 '15 at 13:25
7
@boxed, technically you're right, the invert...
Is the 'override' keyword just a check for a overridden virtual method?
...BKerrek SB
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74
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How to check if a model has a certain column/attribute?
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209
For a class
Use Class.column_names.include? attr_name where attr_name is the string name of yo...
Programmatically find the number of cores on a machine
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C++11
#include <thread>
//may return 0 when not able to detect
const auto processor_count = std::thread::hardware_concurrency();
Reference: std::thread::hardware_concurrency
In C++ prior to C++11, there's no portable way. Instead, you'll need to use one or...