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object==null or null==object?
...oolean value, so unless the constant is a boolean, you'd get a compilation error either way you put the arguments. (and if it is a boolean, you shouldn't be using == anyway...)
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Easiest way to copy a single file from host to Vagrant guest?
... This solution sounds nice, but i can't copy any file due to permission errors.
– orbatschow
Jul 10 '16 at 16:44
@o...
What is the effect of encoding an image in base64?
... 500kb.
– KJEjava48
Apr 19 '17 at 6:05
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How can I suppress all output from a command using Bash?
...null device (bit bucket).
scriptname >/dev/null
And if you also want error messages to be sent there, use one of (the first may not work in all shells):
scriptname &>/dev/null
scriptname >/dev/null 2>&1
scriptname >/dev/null 2>/dev/null
And, if you want to record the ...
Finding duplicate values in MySQL
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What would it mean if it said ERROR: column "c" does not exist LINE 1?
– User
Oct 4 '15 at 17:36
16
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Default value of a type at Runtime [duplicate]
...rgumentException(
"{" + MethodInfo.GetCurrentMethod() + "} Error:\n\nThe supplied value type <" + type +
"> contains generic parameters, so the default value cannot be retrieved");
// If the Type is a primitive type, or if it is another publicly-visible...
What is the result of % in Python?
...3 in Python.
– azam
Aug 3 '16 at 13:05
Can you please explain why -11%5 = 4 ??
– dahiya_boy
...
Declaring Multiple Variables in JavaScript
...ingle line or statement to make quickly understanding code harder and more error prone.
– ogradyjd
Sep 3 '13 at 11:51
9
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How can I format a decimal to always show 2 decimal places?
...y, wrapping num in a tuple is a coding convention to prevent a duck typing error on arguments during string formatting. It doesn't have any effect in this case with a float conversion, but it prevents an unexpected type error when converting to strings. Consider r = 1; "%s" % r; r = (1, 2); "%s" %...
How to drop columns using Rails migration
...table_name, :column_name, :column_type. Otherwise you'll get the following error when trying to run the migration: remove_column is only reversible if given a type
– Dennis
Mar 26 '14 at 13:35
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