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Best way to create an empty map in Java
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If you need an instance of HashMap, the best way is:
fileParameters = new HashMap<String,String>();
Since Map is an interface, you need to pick some class that instantiates it if you want to create an empty instance. HashMap seems as good as any other - so...
How to install Boost on Ubuntu
... haha this screws up my system for good. i think it's the last 2 items.
– thang
Feb 27 '19 at 8:03
old link ...
Why would adding a method add an ambiguous call, if it wouldn't be involved in the ambiguity
... to string[]. That leaves three.
Of the three, we must determine a unique best method. We do so by making pairwise comparisons of the three remaining candidates. There are three such pairs. All of them have identical parameter lists once we strip off the omitted optional parameters, which means th...
ViewModel Best Practices
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here's a code snippet from my best practices:
public class UserController : Controller
{
private readonly IUserService userService;
private readonly IBuilder<User, UserCreateInput> createBuilder;
private readonly IBu...
How to remove a key from a Python dictionary?
...r=1)
2.09e-06
>>> timeit.timeit("d2 = {key: val for key, val in d.items() if key != 3}", setup=setup, number=1)
0.00786
But when the key doesn't exist if key in my_dict: del my_dict[key] is slightly faster than my_dict.pop(key, None). Both are at least three times faster than del in a try...
What approaches are available to dummy design-time data in WPF?
... nicely (Textboxes and TextBlocks, etc). But especially when dealing with ItemsControl and the like, one really needs sample data to be visible in the designer so that you can adjust and tweak controls and data templates without having to run the executable.
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What is the difference between lower bound and tight bound?
...he worst case? tight bound as the average case? lower bound (Omega) as the best case?
– Revanth
Mar 12 '18 at 22:30
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How to determine an interface{} value's “real” type?
... case []interface {}:
for i,n := range t {
fmt.Printf("Item: %v= %v\n", i, n)
}
default:
var r = reflect.TypeOf(t)
fmt.Printf("Other:%v\n", r)
}
}
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Co-variant array conversion from x to y may cause run-time exception
...Control> there is no more concerns since it is not possible to "add" an item to an enumerable.
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How can I scale an entire web page with CSS?
...om
Firefox is the only major browser that does not support Zoom (bugzilla item here) but you could use the "proprietary" -moz-transform property in Firefox 3.5.
So you could use:
div.zoomed {
zoom: 3;
-moz-transform: scale(3);
-moz-transform-origin: 0 0;
}
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