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Docker build “Could not resolve 'archive.ubuntu.com'” apt-get fails to install anything
...pears after a long time
Server: 8.8.8.8
Address 1: 8.8.8.8
If the command appears to hang, but eventually spits out the error "can't resolve 'google.com'", then you have the same problem as me.
The nslookup command queries the DNS server 8.8.8.8 in order to turn the text address of 'google.com...
What does ON [PRIMARY] mean?
I'm creating an SQL setup script and I'm using someone else's script as an example. Here's an example of the script:
4 Ans...
Is there an “exists” function for jQuery?
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In JavaScript, everything is 'truthy' or 'falsy', and for numbers 0 means false, everything else true. So you could write:
if ($(selector).length)
You don't need that >0 part.
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Is it possible to simulate key press events programmatically?
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A non-jquery version that works in both webkit and gecko:
var keyboardEvent = document.createEvent("KeyboardEvent");
var initMethod = typeof keyboardEvent.initKeyboardEvent !== 'undefined' ? "initKeyboardEvent" : "initKeyEvent";
keyboardEvent[initMethod](
"keydown", /...
Can anyone explain this strange behavior with signed floats in C#?
...When at least one field is not 8 bytes wide, CanCompareBits returns false, and the code proceeds to use reflection to loop over the fields and call Equals for each value, which correctly treats -0.0 as equal to 0.0.
Here is the source for CanCompareBits from SSCLI:
FCIMPL1(FC_BOOL_RET, ValueTypeHe...
SQL Server: Get table primary key using sql query [duplicate]
...CONSTRAINT_SCHEMA + '.' + QUOTENAME(CONSTRAINT_NAME)), 'IsPrimaryKey') = 1
AND TABLE_NAME = 'TableName' AND TABLE_SCHEMA = 'Schema'
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On - window.location.hash - Change?
I am using Ajax and hash for navigation.
13 Answers
13
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Comparison of JSON Parser for Objective-C (JSON Framework, YAJL, TouchJSON, etc)
...w, there are three JSON Parsers for Objective-C, JSON Framework , YAJL , and Touch JSON . Then, These three would have their own characteristics.
For example:
YAJL can be used as a SAX style parser.
JSON Framework has relatively long history and is widely used.
Touch JSON parses NSData...
JavaScript null check
...argument, that argument is always declared even if its value is undefined, and so there won’t be any error. You are right about != null followed by !== undefined being useless, though.
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How do you include additional files using VS2010 web deployment packages?
...esting out using the new web packaging functionality in visual studio 2010 and came across a situation where I use a pre-build event to copy required .dll's into my bin folder that my app relies on for API calls. They cannot be included as a reference since they are not COM dlls that can be used wit...