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When is assembly faster than C?
...age, C in particular. However, I've also heard it stated many times that although that's not entirely false, the cases where assembler can actually be used to generate more performant code are both extremely rare and require expert knowledge of and experience with assembly.
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Favorite way to create an new IEnumerable sequence from a single value?
...e an empty sequence of strings you can do
var sequence = Enumerable.Empty<string>();
EDIT OP clarified they were looking to create a single value. In that case
var sequence = Enumerable.Repeat("abc",1);
share
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How to make div background color transparent in CSS
I'm not using CSS3. So I can't use opacity or filter attributes. Without using these attributes how can I make the background-color transparent of a div ? It should be kind of the text box example in this link . Here the text box background color is transparent. I want to make the same, but ...
How can I add some small utility functions to my AngularJS application?
...e that if what you're adding should be thought of as Angular services OR filters, they should be adopted into the code in that manner.
Also, as of the current version 1.4.2, Angular exposes a "Provider" API, which is allowed to be injected into config blocks. See these resources for more:
https:/...
Sorting dropdown alphabetically in AngularJS
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Angular has an orderBy filter that can be used like this:
<select ng-model="selected" ng-options="f.name for f in friends | orderBy:'name'"></select>
See this fiddle for an example.
It's worth noting that if track by is being used it ...
Comparing two byte arrays in .NET
...mount to in 99% of cases. I am using SequenceEqual and my entire code is < 1ms. Those µs you are saving will never add up to the 5 minutes of lack of readability of P/Invoke.
– PRMan
Sep 25 '15 at 23:54
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Edit the root commit in Git?
... tree, you can do the following.
# checkout the root commit
git checkout <sha1-of-root>
# amend the commit
git commit --amend
# rebase all the other commits in master onto the amended root
git rebase --onto HEAD HEAD master
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Android : Check whether the phone is dual SIM
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Update 23 March'15 :
Official multiple SIM API is available now from Android 5.1 onwards
Other possible option :
You can use Java reflection to get both IMEI numbers.
Using these IMEI numbers you can check whether the phone is a DUAL SIM or not.
Tr...
Warning message: In `…` : invalid factor level, NA generated
...hen making your data frame to force "Type" to be a character.
> fixed <- data.frame("Type" = character(3), "Amount" = numeric(3))
> str(fixed)
'data.frame': 3 obs. of 2 variables:
$ Type : Factor w/ 1 level "": NA 1 1
$ Amount: chr "100" "0" "0"
>
> fixed <- data.frame("Ty...
How to set selected item of Spinner by value, not by position?
...in the Spinner use this:
String compareValue = "some value";
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this, R.array.select_state, android.R.layout.simple_spinner_item);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
mSpinner.setAdap...