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Is there a performance difference between i++ and ++i in C?
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I know this question is about C, but I'd be interested to know if browsers can do this optimization for javascript.
– TM.
Aug 12 '09 at 21:58
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Split delimited strings in a column and insert as new rows [duplicate]
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Now you can use tidyr 0.5.0's separate_rows is in place of strsplit + unnest.
For example:
library(tidyr)
(df <- read.table(textConnection("1|a,b,c\n2|a,c\n3|b,d\n4|e,f"), header = F, sep = "|", stringsAsFactors = F))
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Android: AsyncTask vs Service
...syncTask and Loaders but nothing about Services ? Are Services just not known very well or are they deprecated or have some bad attributes or something? What are the differences?
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Must Dependency Injection come at the expense of Encapsulation?
...r to have its dependency fulfilled. Some provider of the dependency must know both that the object in question requires a Foo, and the provider has to have a way of providing the Foo to the object.
Classically this latter case is handled as you say, through constructor arguments or setter methods....
map vs. hash_map in C++
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An unordered_map should give slightly better performance for accessing known elements of the collection, but a map will have additional useful characteristics (e.g. it is stored in sorted order, which allows traversal from start to finish). unordered_map will be faster on insert and delete than ...
When to use inline function and when not to use it?
I know that inline is a hint or request to compiler and its used to avoid function call overheads.
14 Answers
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Does Swift have access modifiers?
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We all know that anything is hackable. We just need some order whats why we need access modifiers
– canbax
Feb 21 '18 at 7:43
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API Keys vs HTTP Authentication vs OAuth in a RESTful API
... @TomDoe Hi Tom - Yes that makes sense. You probably want to use OAuth2 now. If your server is in Python (Django or Flask) take a look at github.com/omab/python-social-auth
– Sid
Aug 18 '15 at 19:43
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Sending and Receiving SMS and MMS in Android (pre Kit Kat Android 4.4)
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Also you must know that sending a SMS and MMS are 2 entirely different things in background. MMS is more of an internet based network service as it requires sending additional items(Media) with text. The given code works fine on a few devi...
binning data in python with scipy/numpy
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@user: I don't know which one is faster for your data and parameters. Both of the methods should be faster than yours, and I'd expect the histogram() method to be faster for a big number of bins. But you'll have to profile yourself, I can'...