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Drawing an image from a data URL to a canvas
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@Phrogz it gives me an error: var ctx = myCanvas.getContext('2d'); just copy/past your code to test
– Jepser Bernardino
Aug 17 '11 at 22:29
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How to detect Adblock on my website?
...your layout gets distorted or ad loads slowly, user can catch a glimpse of error that doesn't relate to him. Also be aware that Adblock is taking measures to block obtrusive messages targeted at ABP users. If you want to ask user for unblocking, do it through simple hideable message that sits outsi...
What is the best method of handling currency/money?
...may also want to include a validation in your items like
def validate
errors.add(:price, "should be at least 0.01") if price.nil? || price < 0.01
end
to sanity-check your values.
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Does a javascript if statement with multiple conditions test all of them?
...hen you try to do a (b == value + 1) for your second check you will get an error if all three conditions if conditions were checked.
– infocyde
Dec 18 '09 at 21:08
4
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Enum Naming Convention - Plural
...th either of the following:
public enum OrderStatus { Pending, Fulfilled, Error };
public class SomeClass {
public OrderStatus OrderStatus { get; set; }
}
or
public enum OrderStatus { Pending, Fulfilled, Error };
public class SomeClass {
public OrderStatus Status { get; set; }
}
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Why can't I reference my class library?
...stacles with this project, was about to throw in the towel when I got this error. You saved it, thanks!
– Tony D
Feb 24 '15 at 21:48
1
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Why does Math.round(0.49999999999999994) return 1?
...re are no doubt many other floating point values affected by this rounding error.
– Michaël Roy
Dec 10 '17 at 5:49
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Checking if a key exists in a JavaScript object?
...("key" in obj) // true if "key" doesn't exist in object
!"key" in obj // ERROR! Equivalent to "false in obj"
Or, if you want to particularly test for properties of the object instance (and not inherited properties), use hasOwnProperty:
obj.hasOwnProperty("key") // true
For performance compar...
Why do I get access denied to data folder when using adb?
...android:/data/data/com.domain.yourapp $
if it doesn't (ie if you get an error) then you probably don't have a rooted phone, or you haven't used your root user privileges. To use your root user privileges, type su on the adb command line and see what happens, if you get an error, then you're phone...
Checking network connection
...tp://216.58.192.142', timeout=1)
return True
except urllib2.URLError as err:
return False
Currently, 216.58.192.142 is one of the IP addresses for google.com. Change http://216.58.192.142 to whatever site can be expected to respond quickly.
This fixed IP will not map to goog...