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Can you write nested functions in JavaScript?
...h you have passed into another function as a variable, you can also use it for calculation inside but defining it outside. See this example:
function calculate(a,b,fn) {
var c = a * 3 + b + fn(a,b);
return c;
}
function sum(a,b) {
return a+b;
}
function prod...
Colspan all columns
... fan of colspan="42" to span the entire range. Obviously this is a problem for >42 columns, but it's one of the few magic numbers I approve of.
– Martin Carney
Jan 14 '13 at 19:43
...
What is the difference between user variables and system variables?
... system variables. The elements are combined when creating the environment for an application. System variables are shared for all users, but user variables are only for your account/profile.
If you deleted the system ones by accident, bring up the Registry Editor, then go to HKLM\ControlSet002\Con...
Array.Add vs +=
...new array with the values of the
original array and the added value. For example, to add an element with a
value of 200 to the array in the $a variable, type:
$a += 200
Source: about_Arrays
+= is an expensive operation, so when you need to add many items you should try to add t...
Properly escape a double quote in CSV
...n use a command-line tool called csvfix to detect any lines which don't conform: csvfix check -nl -v [filename]
– Sam Critchley
Jun 30 '16 at 14:51
2
...
How to keep/exclude a particular package path when using proguard?
...swered Feb 5 '11 at 0:59
Eric LafortuneEric Lafortune
42.1k77 gold badges102102 silver badges9898 bronze badges
...
Will using goto leak variables?
...ere
// error: crosses initialization of ‘std::string x’
... except for certain kinds of object, which the language can handle regardless because they do not require "complex" construction:
int main() {
goto lol;
{
int x;
lol:
x = 0;
}
}
// OK
[n3290: 6.7/3]: It is...
image.onload event and browser cache
...
As you're generating the image dynamically, set the onload property before the src.
var img = new Image();
img.onload = function () {
alert("image is loaded");
}
img.src = "img.jpg";
Fiddle - tested on latest Firefox and Chrome releases.
You can also use the answer in this post, which I ...
What is the _snowman param in Ruby on Rails 3 forms for?
In Ruby on Rails 3 (currently using Beta 4), I see that when using the form_tag or form_for helpers there is a hidden field named _snowman with the value of ☃ ( Unicode \x9731) showing up.
...
How to upgrade Eclipse for Java EE Developers?
...http://download.eclipse.org/releases/oxygen/
Then tell Eclipse to look for updates: Help > Check for updates.
After the installation, Eclipse will restart and show the old splash screen. Next time you manually stop/start Eclipse it will correctly show the correct splash screen.
...