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How to upload, display and save images using node.js and express [closed]
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First of all, you should make an HTML form containing a file input element. You also need to set the form's enctype attribute to multipart/form-data:
<form method="post" enctype="multipart/form-data" action="/upload">
<in...
What's a simple way to get a text input popup dialog box on an iPhone
...w *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex {
NSString* detailString = textField.text;
NSLog(@"String is: %@", detailString); //Put it on the debugger
if ([textField.text length] <= 0 || buttonIndex == 0){
return; //If cancel or 0 length string the stri...
What is the !! (not not) operator in JavaScript?
...1/0) === true // Infinity is truthy
!!"" === false // empty string is falsy
!!"foo" === true // non-empty string is truthy
!!"false" === true // ...even if it contains a falsy value
!!window.foo === false // undefined is falsy
!!null === false // n...
Unresolved external symbol in object files
... because the dll was not in memory and had to be loaded via a LoadLibrary call. (FTR)
– tmj
Sep 2 '14 at 10:08
2
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Why does the MongoDB Java driver use a random number generator in a conditional?
...k && Math.random() <= 0.1)
return res;
The commit that originally introduced this logic had
if (_ok == true) {
_logger.log( Level.WARNING , "Server seen down: " + _addr, e );
} else if (Math.random() < 0.1) {
_logger.log( Level.WARNING , "Server seen down: " + _addr );
}
—a...
How to pass a class type as a function parameter
... the types in the method call:
class func invokeService<T>(service: String, withParams params: Dictionary<String, String>, returningClass: T.Type, completionHandler handler: ((T) -> ())) {
// The compiler correctly infers that T is the class of the instances of returningClass
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Django 1.7 throws django.core.exceptions.AppRegistryNotReady: Models aren't loaded yet
...1.4, not in 1.5, and not in 1.7. If you had it in there, it was added manually by someone - it is not added by django-admin startproject.
– wim
Oct 11 '16 at 16:54
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Apply .gitignore on an existing repository already tracking large number of files
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This answer solved my problem:
First of all, commit all pending changes.
Then run this command:
git rm -r --cached .
This removes everything from the index, then just run:
git add .
Commit it:
git commit -m ".gitignore is now working"
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Get object by id()? [duplicate]
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@HamidFzM No, not really. If I have an ID, I maybe don't even know whether the object still exists or not.
– glglgl
Jul 21 '14 at 8:13
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Why do Java programmers like to name a variable “clazz”? [closed]
...nvention ? I think 'clazz' is not even an English word , has no meaning at all , how can so many programmers name a wrong name coincidentally ?
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