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Why / when would it be appropriate to override ToString?
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@JNF I don’t accept that. ToString is meant to be overridden. Period. Putting a caveat on this statement is not productive. If you do it wrong – your own fault. In fact, your student violated point 4 in the official list of guidelines for overriding ToString th...
contenteditable change events
...ired before the content itself is changed. This won't cover every possible means of changing the content: the user can also use cut, copy and paste from the Edit or context browser menus, so you may want to handle the cut copy and paste events too. Also, the user can drop text or other content, so t...
“The Controls collection cannot be modified because the control contains code blocks”
...pahi It's actually pretty simple - using code blocks inside of a container means that you can no longer update Controls of that container. This basically exploits this behaviour by putting the code block in a separate container - so the error would only show up if you wanted to modify Controls of th...
Create or write/append in text file
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i mean the situation of what if the two users login in different browser. then the php will open the file on the two browser on the same time and update it on the same time also. will there be a problem?\
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cmake and libpthread
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This is not the right answer by any means. Even if you don't like thehouse's answer, and considering this was written in 2009, it's completely non-cross platform. Use thehouse's answer - and if you don't like it then go for something like target_link_libraries(...
Why do we use Base64?
...nt bit. Furthermore the difference in line ending encodings across systems mean that the ASCII character 10 and 13 were also sometimes modified.
To solve these problems Base64 encoding was introduced. This allows you to encode aribtrary bytes to bytes which are known to be safe to send without gett...
Backbone.js: `extend` undefined?
...in the wrong order, first load underscore (guess that is what 'dependency' means :)
Further Clarification just in case this isn't obvious. The order that things are loaded in JavaScript relates to the order the show up on the page. To load underscore first, be sure that the script tag including...
Dynamic SQL - EXEC(@SQL) versus EXEC SP_EXECUTESQL(@SQL)
...x scan each time it is run.
This is much less efficient than a seek, and means it is potentially scanning entire indexes which are constrained to ranges which you are not even querying :@
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Parsing IPv6 extension headers containing unknown extensions
...e never heard of, then the payload, then you cannot parse the payload. The meaning of the payload depends in principle on the header you don't know how to interpret.
Routers can route such packets, because all they need is the routing header. Deep packet inspection gadgets and suchlike need to know...
Change name of iPhone app in Xcode 4
...e them over).
(EDIT:) One more important note. Renaming your bundle will mean that the App Bundle Identifier you registered with Apple Provisioning Portal will no longer work for that app. You will need to generate a new App ID and Provisioning Profile in order to distribute your app to a physica...