大约有 45,000 项符合查询结果（耗时：0.0420秒） [XML]
File Upload using AngularJS
...file">
PHP:
if (isset($_FILES['file']) && $_FILES['file']['error'] == 0) {
// uploads image in the folder images
$temp = explode(".", $_FILES["file"]["name"]);
$newfilename = substr(md5(time()), 0, 10) . '.' . end($temp);
move_uploaded_file($_FILES['file']['tmp_name'], '...
Mongoose and multiple database in single node.js project
...t('mongodb://localhost/default');
const db = mongoose.connection;
db.on('error', console.error.bind(console, 'connection error:'));
db.once('open', () => {
console.log('connected');
});
which is just how it is described in the docs. And then in your model files, do something like the follow...
Array extension to remove object by value
However, I get an error on var index = find(self, object)
15 Answers
15
...
Possible heap pollution via varargs parameter
...ssign incorrect values into the list and the compiler will not trigger any error. For example, if T is a String then the following code will compile without error but will fail at runtime:
// First, strip away the array type (arrays allow this kind of upcasting)
Object[] objectArray = bar;
// Next...
IIS - 401.3 - Unauthorized
...When I try to access http://localhost:85/index.html , I get the following error message:
10 Answers
...
This IP, site or mobile application is not authorized to use this API key
...find the latitude and longitude of any address, when I'm trying I find the error as
13 Answers
...
Applicatives compose, monads don't
...statement: list <*> pure True <*> pure "hello" <*> pure (error "bad")....I get "hello" and the error never occurs. This code isn't nearly as safe or controlled as a monad, but the post seems like it's suggesting that applicatives cause strict evaluation. Overall great post though! ...
Only parameterless constructors and initializers are supported in LINQ to Entities
I have this error in this linq expression :
14 Answers
14
...
What is the most effective way for float and double comparison?
...ed by the majority of programmers. Floating point is always about relative errors, since it is floating point (not fixed point). So it will never correctly work with a fixed error (epsilon).
– user2261015
Apr 13 '17 at 7:58
...
Strangest language feature
... id : 1234,
title : 'Tony the Pony'
};
returns undefined is a syntax error due to the sneaky implicit semicolon insertion on the newline after return. The following works as you would expect though:
return {
id : 1234,
title : 'Tony the Pony'
};
Even worse, this one works as well (i...