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What's the fastest way to read a text file line-by-line?
...
To find the fastest way to read a file line by line you will have to do some benchmarking. I have done some small tests on my computer but you cannot expect that my results apply to your environment.
Using StreamReader.ReadLine
This is ba...
Measure elapsed time in Swift
...e(nanoTime) / 1_000_000_000 // Technically could overflow for long running tests
print("Time to evaluate problem \(problemNumber): \(timeInterval) seconds")
return theAnswer
}
Old answer
For Swift 1 and 2, my function uses NSDate:
// Swift 1
func evaluateProblem(problemNumber: Int, proble...
How do you create a read-only user in PostgreSQL?
...ECT ON mytable TO xxx;
Multiple tables/views (PostgreSQL 9.0+)
In the latest versions of PostgreSQL, you can grant permissions on all tables/views/etc in the schema using a single command rather than having to type them one by one:
GRANT SELECT ON ALL TABLES IN SCHEMA public TO xxx;
This only ...
browser sessionStorage. share between tabs?
...foobar');
localStorage.removeItem('getSessionStorage', 'foobar');
};
I tested this in chrome, ff, safari, ie 11, ie 10, ie9
This method "should work in IE8" but i could not test it as my IE was crashing every time i opened a tab.... any tab... on any website. (good ol IE) PS: you'll obviously n...
Static Classes In Java
...instance member
Simple example per suggestions from above:
public class TestMyStaticClass {
public static void main(String []args){
MyStaticClass.setMyStaticMember(5);
System.out.println("Static value: " + MyStaticClass.getMyStaticMember());
System.out.println("Value ...
Simplest/Cleanest way to implement singleton in JavaScript?
...eclaring variables at the module scope:
// my-singleton.js
const somePrivateState = []
function privateFn () {
// ...
}
export default {
method1() {
// ...
},
method2() {
// ...
}
}
Then you can simply import the singleton object to use it:
import myInstance from './my-single...
What is the python “with” statement designed for?
..., "w")):
# these print statements will go to /tmp/log.txt
print "Test entry 1"
print "Test entry 2"
# back to the normal stdout
print "Back to normal stdout again"
And finally, another example that creates a temporary folder and cleans it up when leaving the context:
from tempfile ...
Or versus OrElse
...s short circuited, this means that only one side of the expression will be tested if the first side is a match.
Just like AndAlso will only test one side of the expression if the first half is a fail.
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Using jQuery To Get Size of Viewport
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I tested this on Windows IE6, IE8, FF3.6.3, Google Chrome 5.0.375.70, Opera 10.53, and Safari 5.0 (7533.16). This works consistently on all of these. I also tested FF3.6.3 on Ubuntu and it works there too. I think I'm using jQu...
How do I check if an integer is even or odd? [closed]
...not believe this to be the case.
Out of curiosity, I created two trivial test case programs:
/* modulo.c */
#include <stdio.h>
int main(void)
{
int x;
for (x = 0; x < 10; x++)
if (x % 2)
printf("%d is odd\n", x);
return 0;
}
/* and.c */
#include <stdi...