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How to add default value for html ? [closed]
... to aid the user with data entry when the control has no value" [and it disappears as soon as user clicks into the textarea]. It will never act as "the default value" for the control. If you want that, you must put the desired text inside the Here is the actual default value, as per other answers he...
Vagrant error : Failed to mount folders in Linux guest
...itions_4.3.11-93070.iso
sudo cp VBoxGuestAdditions_4.3.11-93070.iso /Applications/VirtualBox.app/Contents/MacOS/VBoxGuestAdditions.iso
UPDATE (16may2014)
Since the iso is no longer available, you can use the 4.3.12 one (http://dlc.sun.com.edgesuite.net/virtualbox/4.3.12/VBoxGuestAdditions_...
Read and write a String from text file
...r: .documentDirectory, in: .userDomainMask).first {
let fileURL = dir.appendingPathComponent(file)
//writing
do {
try text.write(to: fileURL, atomically: false, encoding: .utf8)
}
catch {/* error handling here */}
//reading
do {
let text2 = try String(c...
When to catch java.lang.Error?
In what situations should one catch java.lang.Error on an application?
16 Answers
16...
Capture keyboardinterrupt in Python without try-except
... want is to not show the traceback, make your code like this:
## all your app logic here
def main():
## whatever your app does.
if __name__ == "__main__":
try:
main()
except KeyboardInterrupt:
# do nothing here
pass
(Yes, I know that this doesn't directly answer the q...
ASP.NET MVC - Attaching an entity of type 'MODELNAME' failed because another entity of the same type
In a nutshell the exception is thrown during POSTing wrapper model and changing the state of one entry to 'Modified'. Before changing the state, the state is set to 'Detached' but calling Attach() does throw the same error. I'm using EF6.
...
Populating a database in a Laravel migration file
...atabase (since we may seed before the schema is fully updated). When that happens we update the old migration to address the issue.
– darrylkuhn
Apr 4 '17 at 16:45
...
Bring a window to the front in WPF
How can I bring my WPF application to the front of the desktop? So far I've tried:
18 Answers
...
Node.js Best Practice Exception Handling
...s depending on our code architecture:
For synchronous code, if an error happens, return the error:
// Define divider as a syncrhonous function
var divideSync = function(x,y) {
// if error condition?
if ( y === 0 ) {
// "throw" the error safely by returning it
return new Er...
What is the iBeacon Bluetooth Profile
I'd like to create my own iBeacon with some Bluetooth Low Energy dev kits. Apple has yet to release a specification for iBeacons, however, a few hardware developers have reverse Engineered the iBeacon from the AirLocate Sample code and started selling iBeacon dev kits.
...