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How to count items in a Go map?
...ed from the now-retired SO documentation:
m := map[string]int{}
len(m) // 0
m["foo"] = 1
len(m) // 1
If a variable points to a nil map, then len returns 0.
var m map[string]int
len(m) // 0
Excerpted from Maps - Counting map elements. The original author was Simone Carletti. Attribution det...
Django: Display Choice Value
...
answered Dec 1 '10 at 5:36
jMylesjMyles
9,74466 gold badges3737 silver badges5151 bronze badges
...
Deleting lines from one file which are in another file
...
answered Jan 24 '11 at 9:06
gabuzogabuzo
6,27833 gold badges2323 silver badges3535 bronze badges
...
Matplotlib plots: removing axis, legends and white spaces
...
406
I think that the command axis('off') takes care of one of the problems more succinctly than cha...
Swift equivalent for MIN and MAX macros
... JackJack
15.9k88 gold badges4444 silver badges5050 bronze badges
2
...
Which, if any, C++ compilers do tail-recursion optimization?
...s such as:
int bar(int, int);
int foo(int n, int acc) {
return (n == 0) ? acc : bar(n - 1, acc + 2);
}
int bar(int n, int acc) {
return (n == 0) ? acc : foo(n - 1, acc + 1);
}
Letting the compiler do the optimisation is straightforward: Just switch on optimisation for speed:
For MSVC,...
is node.js' console.log asynchronous?
...
102
Update: Starting with Node 0.6 this post is obsolete, since stdout is synchronous now.
Well le...
How to iterate object in JavaScript? [duplicate]
... Neuron
3,54333 gold badges2323 silver badges4040 bronze badges
answered Mar 19 '13 at 10:14
kavinkavin
1,70411 gold badge10...
Why use softmax as opposed to standard normalization?
...
170
There is one nice attribute of Softmax as compared with standard normalisation.
It react to lo...
How do I space out the child elements of a StackPanel?
...ype="{x:Type TextBox}">
<Setter Property="Margin" Value="0,10,0,0"/>
</Style>
</StackPanel.Resources>
<TextBox Text="Apple"/>
<TextBox Text="Banana"/>
<TextBox Text="Cherry"/>
</StackPanel>
EDIT: In case you would wa...