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Is Dvorak typing appropriate for programming? [closed]
...5382
X = 5261
' = 3877
\ = 3421
2 = 3395
+ = 3172
& = 2702
[ = 2597
] = 2586
3 = 2174
Z = 2141
4 = 1657
J = 1599
! = 1595
5 = 1560
# = 1501
6 = 1367
| = 1029
8 = 967
9 = 953
7 = 939
? = 610
` = 367
~ = 59...
What differences, if any, between C++03 and C++11 can be detected at run-time?
...eturn (y.z == 1);
}
The following is based on the fact that operator int&& is a conversion function to int&& in C++0x, and a conversion to int followed by logical-and in C++03
struct Y { bool x1, x2; };
struct A {
operator int();
template<typename T> operator T();
boo...
static constructors in C++? I need to initialize private static objects
...utes. A well-known much safer approach is class Elsewhere { StaticStuff& get_staticStuff() { static StaticStuff staticStuff; // constructor runs once, when someone first needs it return staticStuff; } }; I wonder if static constructors in C# and Java can provide the sa...
How to run a single RSpec test?
...
Usually I do:
rspec ./spec/controllers/groups_controller_spec.rb:42
Where 42 represents the line of the test I want to run.
EDIT1:
You could also use tags. See here.
EDIT 2:
Try:
bundle exec rspec ./spec/controllers/gro...
How does the “this” keyword work?
...ent obj["myMethod"](), then ThisBinding is set to the object (obj in the example; §13.2.1). In most other cases, ThisBinding is set to the global object (§10.4.3).
The reason for writing "in most other cases" is because there are eight ECMAScript 5 built-in functions that allow ThisBinding to be s...
Upgrading Node.js to latest version
...
OSX Yosemite, npm install n -g && n stable worked for me. No need for sudo if node was not previously installed with it.
– Stephan Bijzitter
Nov 4 '15 at 17:36
...
Cross-thread operation not valid: Control 'textBox1' accessed from a thread other than the thread it
...se a dispatcher as descibed in the MSDN article:
How to: Make Thread-Safe Calls to Windows Forms Controls
So instead of setting the text property directly in the serialport1_DataReceived method, use this pattern:
delegate void SetTextCallback(string text);
private void SetText(string text)
{
// I...
Divide a number by 3 without using *, /, +, -, % operators
...the + operator
int add(int x, int y)
{
while (x) {
int t = (x & y) << 1;
y ^= x;
x = t;
}
return y;
}
int divideby3(int num)
{
int sum = 0;
while (num > 3) {
sum = add(num >> 2, sum);
num = add(num >> 2, num & ...
Set the maximum character length of a UITextField
...range length. If this value is too long (more than 25 characters in this example), return NO to prohibit the change.
When typing in a single character at the end of a text field, the range.location will be the current field's length, and range.length will be 0 because we're not replacing/deleting an...
node.js equivalent of python's if __name__ == '__main__' [duplicate]
...is not defined. To prevent this, use:
if (typeof require !== 'undefined' && require.main === module) {
fnName();
}
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