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Which is better, number(x) or parseFloat(x)?
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The difference between parseFloat and Number
parseFloat/parseInt is for parsing a string, while Number/+ is for coercing a value to a number. They behave differently. But first let's look at where they behave the same:
parseFloa...
How can I launch Safari from an iPhone app?
...g :
NSURL *url = [NSURL URLWithString:@"http://www.stackoverflow.com"];
if (![[UIApplication sharedApplication] openURL:url]) {
NSLog(@"%@%@",@"Failed to open url:",[url description]);
}
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Where are the PostgreSQL logs on macOS?
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On OS X, if you're using the EnterpriseDB installation of PostgreSQL, your log files will be in /Library/PostgreSQL/8.4/data/pg_log
Of course, you'll want to substitute 8.4 for whichever version number you're running.
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In Rails - is there a rails method to convert newlines to ?
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simple_format is security risk if using it for a web app. It relies on Rails interpreting special syntax like javascript:alert(\no!\) as given in the reference. There could be endless variations and future variations for malicious hackers to work with.
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How to run a PowerShell script without displaying a window?
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I compiled the PsRun, however, if I add it to the scheduled task, it also flashes a window...
– Ciantic
Dec 12 '15 at 17:33
3
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No connection string named 'MyEntities' could be found in the application config file
...nced in the transformed .config-file. So that's something to look out for, if you're using config-file transformations.
– Morten Nørgaard
Feb 5 '15 at 22:24
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PHP cURL custom headers
I'm wondering if/how you can add custom headers to a cURL HTTP request in PHP. I'm trying to emulate how iTunes grabs artwork and it uses these non-standard headers:
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What is the purpose of the single underscore “_” variable in Python?
...ases above). For example year,month,day = date() will raise a lint warning if the day variable is not used later on in the code, the fix if the day is truly not needed is to write year,month,_ = date(). Same with lambda functions, lambda arg: 1.0 is creating a function requiring one argument but not...
Is it possible to have empty RequestParam values use the defaultValue?
if I have a a request mapping similar to the following:
5 Answers
5
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Automatic Retina images for web sites
With the new Apple MacBook Pro with retina display, if you provide a "standard" image on your website, it'll be a little fuzzy. So you have to provide a retina image.
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