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Why does Node.js' fs.readFile() return a buffer instead of string?
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It is returning a Buffer object.
If you want it in a string, you can convert it with data.toString():
var fs = require("fs");
fs.readFile("test.txt", function (err, data) {
if (err) throw err;
console.log(data.toString());
});
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Safely override C++ virtual functions
...function with the correct signature does not exist
void handle_event(int something) override;
};
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iPhone Data Usage Tracking/Monitoring
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The thing is that pdp_ip0 is one of interfaces, all pdpXXX are WWAN interfaces dedicated to different functions, voicemail, general networking interface.
I read in Apple forum that :
The OS does not keep network statistics on a process-by-process basis. As suc...
Measuring the distance between two coordinates in PHP
... $longitudeFrom, $latitudeTo, $longitudeTo, $earthRadius = 6371000)
{
// convert from degrees to radians
$latFrom = deg2rad($latitudeFrom);
$lonFrom = deg2rad($longitudeFrom);
$latTo = deg2rad($latitudeTo);
$lonTo = deg2rad($longitudeTo);
$latDelta = $latTo - $latFrom;
$lonDelta = $lo...
Does Java support default parameter values?
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@JarrodRoberson: Interesting way of forcing correct use via the compiler, thanks for sharing! Friendly suggestion for future posts: 300 lines of uncommented source code is probably a bit much to digest for most people (code is harder to read ...
Do try/catch blocks hurt performance when exceptions are not thrown?
...Stopwatch w = new Stopwatch();
double d = 0;
w.Start();
for (int i = 0; i < 10000000; i++)
{
try
{
d = Math.Sin(1);
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
}
w.Stop();
Conso...
In .NET, which loop runs faster, 'for' or 'foreach'?
...stem;
using System.Diagnostics;
using System.Linq;
class Test
{
const int Size = 1000000;
const int Iterations = 10000;
static void Main()
{
double[] data = new double[Size];
Random rng = new Random();
for (int i=0; i < data.Length; i++)
{
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How do I remove duplicates from a C# array?
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You could possibly use a LINQ query to do this:
int[] s = { 1, 2, 3, 3, 4};
int[] q = s.Distinct().ToArray();
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Clang optimization levels
...m-as < /dev/null | opt -O3 -disable-output -debug-pass=Arguments
As pointed out in Geoff Nixon's answer (+1), clang additionally runs some higher level optimizations, which we can retrieve with:
echo 'int;' | clang -xc -O3 - -o /dev/null -\#\#\#
Documentation of individual passes is availabl...
setBackground vs setBackgroundDrawable (Android)
...ct, just for the completeness of it... You'd do something like following:
int sdk = android.os.Build.VERSION.SDK_INT;
if(sdk < android.os.Build.VERSION_CODES.JELLY_BEAN) {
setBackgroundDrawable();
} else {
setBackground();
}
For this to work you need to set buildTarget api 16 and min b...