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What's the canonical way to check for type in Python?
...e its .write() method!
Of course, sometimes these nice abstractions break down and isinstance(obj, cls) is what you need. But use sparingly.
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How do you round a float to two decimal places in jruby
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"%.2f" rounds 5 down, instead of up, is there any way to fix that?
– Mirror318
Jun 14 '16 at 23:37
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How do you round to 1 decimal place in Javascript?
...shifting to cast the number to an int. So, it always rounds towards zero (down for positive numbers, up for negatives).
var rounded = ((num * 10) << 0) * 0.1;
But hey, since there are no function calls, it's wicked fast. :)
And here's one that uses string matching:
var rounded = (num + '...
Best practices: throwing exceptions from properties
...ou watch or inspect an object. An exception here can be confusing and slow down your debugging efforts. It's also undesirable to perform other expensive operations in properties (like accessing a database) for the same reasons.
Properties are often used in a chaining convention: obj.PropA.AnotherPro...
What is the difference between service, directive and module?
...Angular calls these behavior extensions directives.
When you boil it all down, a directive is just a function which executes when the Angular compiler encounters it in the DOM.
A directive is a behavior or DOM transformation which is triggered by a presence of an attribute, an element name, a cla...
Update a table using JOIN in SQL Server?
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You don't quite have SQL Server's proprietary UPDATE FROM syntax down. Also not sure why you needed to join on the CommonField and also filter on it afterward. Try this:
UPDATE t1
SET t1.CalculatedColumn = t2.[Calculated Column]
FROM dbo.Table1 AS t1
INNER JOIN dbo.Table2 AS t2
O...
C# int to byte[]
...lue >> 8);
bytes[3] = (byte)intValue;
Console.WriteLine("{0} breaks down to : {1} {2} {3} {4}",
intValue, bytes[0], bytes[1], bytes[2], bytes[3]);
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Git cherry pick vs rebase
... its own tip commits in one way or another. Yes, this is a heavily dumbed down description of what git rebase can do, but it's intentional, to try to make the general idea sink in.
Update to further explain an example of using git rebase being discussed.
Given this situation,The Book states:
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Binding an enum to a WinForms combo box, and then setting it
...Enum
public enum Status { Active = 0, Canceled = 3 };
Setting the drop down values from it
cbStatus.DataSource = Enum.GetValues(typeof(Status));
Getting the enum from the selected item
Status status;
Enum.TryParse<Status>(cbStatus.SelectedValue.ToString(), out status);
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How can I safely create a nested directory?
...08, will mask a failure to create the directory. Don't feel bad for voting down - you don't like the answer. It's what votes are for.
– Blair Conrad
Nov 7 '08 at 20:35
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