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Can I target all tags with a single selector?
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This does not work. Please test your code before posting an answer as this is detrimental to anyone who may try using it. I edited your answer with tested and working code.
– Hybrid web dev
Nov 28 '19 at 22:22
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Is there a unique Android device ID?
..."some" of the time, and unfortunately, that's not good enough.
Based on my tests of devices (all phones, at least one of which is not activated):
All devices tested returned a value for TelephonyManager.getDeviceId()
All GSM devices (all tested with a SIM) returned a value for TelephonyManager.getS...
Simultaneously merge multiple data.frames in a list
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I tested this solution on R2.7.2 and I get the same match.names error. So there's some more fundamental problem with this solution and my data. I used the code: Reduce(function(x, y) merge(x, y, all=T,by.x=match.by, by.y=match....
Detect 7 inch and 10 inch tablet programmatically
...s easy as described above -- use Configuration.smallestScreenWidthDp, then test accordingly:
resources.getConfiguration().smallestScreenWidthDp
Otherwise, if you can afford this, use the following method which is a very accurate approach to detect 600dp (like 6") vs. 720dp (like 10") by letting t...
String concatenation: concat() vs “+” operator
...l produces exactly the same code, but the bytecode compiler cheats. Simple testing entirely fails because the entire body of code is thrown away. Summing System.identityHashCode (not String.hashCode) shows the StringBuffer code has a slight advantage. Subject to change when the next update is releas...
Getting the folder name from a path
...directory for a path when no filename is in the path:
for example "c:\tmp\test\visual";
string dir = @"c:\tmp\test\visual";
Console.WriteLine(dir.Replace(Path.GetDirectoryName(dir) + Path.DirectorySeparatorChar, ""));
Output:
visual
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Insert space before capital letters
...;
For special cases when 2 consecutive capital letters occur (Eg: ThisIsATest) add additional code below:
s = s.replace(/([A-Z])([A-Z])/g, '$1 $2');
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Adding a newline into a string in C#
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{
static void Main()
{
WriteToFile
(
@"C:\test.txt",
"fkdfdsfdflkdkfk@dfsdfjk72388389@kdkfkdfkkl@jkdjkfjd@jjjk@",
"@"
);
/*
output in test.txt in windows =
fkdfdsfdflkdkfk@
dfsdfjk72388389@
kdkfkdfkkl@
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Returning an array using C
...ved_from(srcArray[i]);
...
}
int main(void)
{
char src[] = "This is a test";
char dst[sizeof src];
...
returnArray(src, sizeof src, dst, sizeof dst);
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}
Another method is for the function to allocate the array dynamically and return the pointer and size:
char *returnArray(const ch...
How to make the 'cut' command treat same sequental delimiters as one?
... all the possible combinations for future readers. Explanations are at the Test section.
tr | cut
tr -s ' ' < file | cut -d' ' -f4
awk
awk '{print $4}' file
bash
while read -r _ _ _ myfield _
do
echo "forth field: $myfield"
done < file
sed
sed -r 's/^([^ ]*[ ]*){3}([^ ]*).*/\2/' ...