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What does the constant 0.0039215689 represent?

... I would've expected to see it written as a = b * (1.0f / 255); compilers still do constant folding, don't they? – Ilmari Karonen Mar 24 '14 at 22:51 9 ...
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What’s the best way to reload / refresh an iframe?

... absolute it's work, but stuck with same domain origin policy ==a – Bobby Stenly Mar 19 '13 at 6:32 6 ...
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Is it possible to specify a starting number for an ordered list?

...pecification. The ol element also had an optional start attribute in XHTML 1.0's transitional DTD but not in XHTML 1.0's strict DTD (search for the string ATTLIST ol and check the attribute list). So in spite of what some of the older comments say, the start attribute was not deprecated; rather it w...
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Detect Browser Language in PHP

...atch)) { if (!isset($match[2])) { $match[2] = '1.0'; } else { $match[2] = (string) floatval($match[2]); } if (!isset($languages[$match[2]])) { $languages[$match[2]] = array(); } $l...
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Why does Java's hashCode() in String use 31 as a multiplier?

... It's not a great hash algorithm, but it's good enough and better than the 1.0 code (and very much better than the 1.0 spec!). share | improve this answer | follow ...
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What does in XML mean?

...he document in a browser, while the CDATA section will: <?xml version="1.0" encoding="UTF-8" standalone="no" ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lan...
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WiX tricks and tips

...ing) correct product and location. Example Config.wxi <?xml version="1.0" encoding="utf-8"?> <Include> <!-- Upgrade code should not change unless you want to install a new product and have the old product remain installed, that is, both products existing as separate ins...
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How does one generate a random number in Apple's Swift language?

...value in the range of possibilities? So lets say I do 0.0 as the lower and 1.0 as the upper. With this logic it will give me 0.0 up to 0.99999999. But instead I'd like to include the 1.0 as a possibility. How can I achieve this? – MobileMon Oct 19 '16 at 18:01 ...
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How do I concatenate or merge arrays in Swift?

...enate the arrays with +, building a new array let c = a + b print(c) // [1.0, 2.0, 3.0, 4.0, 5.0, 6.0] or append one array to the other with += (or append): a += b // Or: a.append(contentsOf: b) // Swift 3 a.appendContentsOf(b) // Swift 2 a.extend(b) // Swift 1.2 print(a) // ...
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Sending “User-agent” using Requests library in Python

...t requests url = 'SOME URL' headers = { 'User-Agent': 'My User Agent 1.0', 'From': 'youremail@domain.com' # This is another valid field } response = requests.get(url, headers=headers) If you're using requests v2.12.x and older Older versions of requests clobbered default headers, so y...