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How to access component methods from “outside” in ReactJS?
... 2016-09-19: Changed example to use ref callback per guidance from the ref String attribute docs.
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Is there an equivalent for var_dump (PHP) in Javascript?
...
A lot of modern browsers support the following syntax:
JSON.stringify(myVar);
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Android ImageView Zoom-in and Zoom-Out
...ut extends Activity implements OnTouchListener
{
private static final String TAG = "Touch";
@SuppressWarnings("unused")
private static final float MIN_ZOOM = 1f,MAX_ZOOM = 1f;
// These matrices will be used to scale points of the image
Matrix matrix = new Matrix();
Matrix s...
How to hide first section header in UITableView (grouped style)
...{
if (section == 0)
return 1.0f;
return 32.0f;
}
- (NSString*) tableView:(UITableView *) tableView titleForHeaderInSection:(NSInteger)section
{
if (section == 0) {
return nil;
} else {
// return some string here ...
}
}
- (void) viewDidLoad
{
[su...
get path for my .exe [duplicate]
...
In a Windows Forms project:
For the full path (filename included): string exePath = Application.ExecutablePath;
For the path only: string appPath = Application.StartupPath;
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Is returning by rvalue reference more efficient?
...p;b) {
return std::move(a < b? a: b);
}
int main() {
const std::string s = min_(std::string("A"), std::string("B"));
fprintf(stderr, "min: %s\n", s.c_str());
return 0;
}
As an interesting observation, on my machine clang++ -O3 generates 54 instructions for code above versus 62 ins...
MySQL OPTIMIZE all tables?
... optimising 1 table at a time. You should implode the table names into one string and hence only one optimize table query is required.
– Dean Marshall
Apr 14 '12 at 11:23
8
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How to use MDC with thread pools?
...tor {
final private boolean useFixedContext;
final private Map<String, Object> fixedContext;
/**
* Pool where task threads take MDC from the submitting thread.
*/
public static MdcThreadPoolExecutor newWithInheritedMdc(int corePoolSize, int maximumPoolSize, long kee...
How to load external webpage inside WebView
...rride
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
Toast.makeText(activity, description, Toast.LENGTH_SHORT).show();
}
@TargetApi(android.os.Build.VERSION_CODES.M)
@Override
...
How to fix the flickering in User controls
...nvenient for point and click but their light-weight alternative (drawing a string or an image) takes only a single line of code in your OnPaint() method.
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