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What is a elegant way in Ruby to tell if a variable is a Hash or an Array?
...ow the type and if it is Hash or Array then you can do:
["Hash", "Array"].include?(@some_var.class) #=> check both through instance class
@some_var.kind_of?(Hash) #=> to check each at once
@some_var.is_a?(Array) #=> same as kind_of
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Objective-C: Extract filename from path string
...dInfoDictionary] objectForKey:@"CFBundleName"] instead. displayNameAtPath includes the extension where this code returns the localized name.
– Peter N Lewis
Jul 9 '09 at 5:43
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Making your .NET language step correctly in the debugger
... sequence point (stack is not empty). I am worried
.line 20,20 : 7,14 '' includes the code for "car x" (good) as well as "#f nooo x" (bad?)
regarding the nop after ret. What about stloc, ldloc, ret? I think C# uses this trick to make ret a distinct sequence point.
David
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Overriding a Rails default_scope
...ff like: :where, :select, :group, :order, :lock, :limit, :offset, :joins, :includes, :from, :readonly, :having.
But still please avoid using of default_scope if you can. It's for your own good.
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Allowed characters in filename [closed]
...tems.
It also has a plethora of other information about each file system, including reserved file names such as CON under MS-DOS. I mention that only because I was bitten by that once when I shortened an include file from const.h to con.h and spent half an hour figuring out why the compiler hung.
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What is “android:allowBackup”?
...can generate an HTML report from lint (lint --html <filename>) which includes full explanations next to the warnings, or you can ask lint to explain a particular issue. For example, the issue related to allowBackup has the id AllowBackup (shown at the end of the error message), so the fuller e...
Extract first item of each sublist
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Python includes a function called itemgetter to return the item at a specific index in a list:
from operator import itemgetter
Pass the itemgetter() function the index of the item you want to retrieve. To retrieve the first item...
jQuery templating engines [closed]
...te a new element in the form's bound a object's array? The template would include templating the element indexes of arrays and could be properly serialized for POSTing. But I'm having trouble thinking it all through. The goal is InfoPath-like functionality. (I'm aware of the various existing info...
How to calculate number of days between two dates
... 0, 29]);
var b = moment([2007, 0, 28]);
a.diff(b, 'days') // =1
or to include the start:
a.diff(b, 'days')+1 // =2
Beats messing with timestamps and time zones manually.
Depending on your specific use case, you can either
Use a/b.startOf('day') and/or a/b.endOf('day') to force the diff ...
How to style the UL list to a single line
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While this gets the job done, you will also want to include some padding to keep the elements spaced nicely
– Rob Allen
Jun 10 '09 at 17:09
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