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jQuery callback on image load (even when the image is cached)
...
You can also use this code with support for loading error:
$("img").on('load', function() {
// do stuff on success
})
.on('error', function() {
// do stuff on smth wrong (error 404, etc.)
})
.each(function() {
if(this.complete) {
$(this).load();
} else if(th...
How to declare a variable in a PostgreSQL query
... set session my.vars.id = '1'; to set session my.user.id = '1'; will yield ERROR: syntax error at or near "user"
– dominik
Jul 9 '17 at 19:13
2
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How to access the GET parameters after “?” in Express?
...rs) => {
res.render('users', { users })
})
.catch(console.error)
})
app.get('/api/company/users', (req, res) => {
const companyname = req.query.companyName
console.log(companyname)
userByJob(companyname)
.then((users) => {
res.render('job', { users })
}).c...
Calling Python in Java?
...t.
A simple example from the top of my head - but should work I hope: (no error checking done for brevity)
PythonInterpreter interpreter = new PythonInterpreter();
interpreter.exec("import sys\nsys.path.append('pathToModules if they are not there by default')\nimport yourModule");
// execute a fun...
Select elements by attribute
...
It throws js errors if you try something like :td[myattr]. So I think this feature was specifically targeting checkboxes.
– fooledbyprimes
Aug 29 '12 at 14:48
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Why is enum class preferred over plain enum?
...mal a = Animal::deer;
Mammal m = Mammal::deer;
int num2 = a; // error
if (m == a) // error (good)
cout << "bad" << endl;
if (a == Mammal::deer) // error (good)
cout << "bad" << endl;
}
Conclusion:
enum classes should be preferred ...
Regular cast vs. static_cast vs. dynamic_cast [duplicate]
... while the "equivalent" static_cast sequence would give you a compile-time error for that.
Some people prefer C-style casts because of their brevity. I use them for numeric casts only, and use the appropriate C++ casts when user defined types are involved, as they provide stricter checking.
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Getting only response header from HTTP POST using curl
... option is however a better
way to store cookies.
and
-S, --show-error
When used with -s, --silent, it makes curl show an error message if it fails.
and
-L/--location
(HTTP/HTTPS) If the server reports that the requested page has moved to a different location (indicated wi...
How to avoid “cannot load such file — utils/popen” from homebrew on OSX
I'm getting an error when I run brew in the terminal:
9 Answers
9
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explicit casting from super class to subclass
The assignment Dog dog = (Dog) animal; does not generate a compilation error, but at runtime it generates a ClassCastException . Why can't the compiler detect this error?
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