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subtle differences between JavaScript and Lua [closed]
...the for loop creates new local variables for each loop variable.
local i='foo'
for i=1,10 do
-- "i" here is not the local "i" declared above
...
end
print(i) -- prints 'foo'
The above code is equivalent to:
local i='foo'
do
local _i=1
while _i<10 do
local i=_i
...
_i=_i+1
...
Is there a way to access method arguments in Ruby?
...e name of the parameter and whether it is required.
e.g.
If you do
def foo(x, y)
end
then
method(:foo).parameters # => [[:req, :x], [:req, :y]]
You can use the special variable __method__ to get the name of the current method. So within a method the names of its parameters can be obtaine...
Why should I avoid using Properties in C#?
...pler to read. The Law of Demeter is all very well in theory, but sometimes foo.Name.Length really is the right thing to use...)
(And no, automatically implemented properties don't really change any of this.)
This is slightly like the arguments against using extension methods - I can understand the...
Why does this code using random strings print “hello world”?
The following print statement would print "hello world".
Could anyone explain this?
15 Answers
...
Add a new element to an array without specifying the index in Bash
Is there a way to do something like PHPs $array[] = 'foo'; in bash vs doing:
5 Answers
...
Can you pass parameters to an AngularJS controller on creation?
...h?model="+$attrs.model;
})
<div ng-controller="modelController" model="foobar">
<a href="{{url}}">Click here</a>
</div>
Again, no idea if this is a good idea, but it seems to work and is another alternative.
...
What does extern inline do?
...eak symbol (like C++, aka "just make it work")
__attribute__((weak))
void foo(void);
inline void foo(void) { ... }
Note that this leaves a bunch of copies of the same code lying around, and the linker picks one arbitrarily.
inline, but never emit any symbol (leaving external references)
__attri...
How to pass parameters correctly?
... be visible to the caller, then you should pass by lvalue reference:
void foo(my_class& obj)
{
// Modify obj here...
}
If your function does not need to modify the original object, and does not need to create a copy of it (in other words, it only needs to observe its state), then you shou...
How to set up a cron job to run an executable every hour?
I need to set up a cron job that runs an executable compiled using gcc once every hour.
7 Answers
...
Dynamic validation and name in a form with AngularJS
...>
<ng-form name="innerForm">
<input type="text" name="foo" ng-model="item.foo" />
<span ng-show="innerForm.foo.$error.required">required</span>
</ng-form>
</div>
<input type="submit" ng-disabled="outerForm.$invalid" />
</form>
Sa...