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Are Swift variables atomic?
...at tool.
@interface ObjectiveCar : NSObject
@property (nonatomic, strong) id engine;
@property (atomic, strong) id driver;
@end
Uses objc_storeStrong and objc_setProperty_atomic for nonatomic and atomic respectively, where
class SwiftCar {
var engine : AnyObject?
init() {
}
}
u...
How to prevent ifelse() from turning Date objects into numeric objects
... note: I see that Hadley has built an if_else into the the magrittr/dplyr/tidyr complex of data-shaping packages.
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Express res.sendfile throwing forbidden error
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I believe it's because of the relative path; the "../" is considered malicious. Resolve the local path first, then call res.sendfile. You can resolve the path with path.resolve beforehand.
var path = require('path');
res.sendFile(path.resolve('temp/index.html'));
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What CSS selector can be used to select the first div within another div
... H1 is always going to be there, then
div h1+div {...}
but don't be afraid to specify the id of the content div:
#content h1+div {...}
That's about as good as you can get cross-browser right now without resorting to a JavaScript library like jQuery. Using h1+div ensures that only the first div...
What's the Best Way to Shuffle an NSMutableArray?
...;Cocoa/Cocoa.h>
#endif
// This category enhances NSMutableArray by providing
// methods to randomly shuffle the elements.
@interface NSMutableArray (Shuffling)
- (void)shuffle;
@end
// NSMutableArray_Shuffling.m
#import "NSMutableArray_Shuffling.h"
@implementation NSMutableArray (Shuffling)...
Update a column value, replacing part of a string
...iversity
SET course_name = REPLACE(course_name, '&amp', '&') WHERE id = 1
Results: Engineering &amp Technology => Engineering & Technology
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Best way to check if a Data Table has a null value in it
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I will do like....
(!DBNull.Value.Equals(dataSet.Tables[6].Rows[0]["_id"]))
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Is there a function to deselect all text using JavaScript?
...election().removeAllRanges(); works in all current browsers. Live demo: jsfiddle.net/hWMJT/1
– Šime Vidas
Jul 3 '11 at 12:18
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How can I create a “Please Wait, Loading…” animation using jQuery?
.../ajaxload.info
I'll be using
Let's create an element that we can show/hide anytime we're making an ajax request:
<div class="modal"><!-- Place at bottom of page --></div>
The CSS
Next let's give it some flair:
/* Start by setting display:none to make this hidden.
Then w...
Fit image into ImageView, keep aspect ratio and then resize ImageView to image dimensions?
...n an activity. I tested it via button click handler.
Enjoy. :)
private void scaleImage(ImageView view) throws NoSuchElementException {
// Get bitmap from the the ImageView.
Bitmap bitmap = null;
try {
Drawable drawing = view.getDrawable();
bitmap = ((BitmapDrawable) d...