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What's the difference between and , and ?

What's the difference between <b> and <strong> , <i> and <em> in HTML/XHTML? When should you use each? ...
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Saving an Object (Data persistence)

... You could use the pickle module in the standard library. Here's an elementary application of it to your example: import pickle class Company(object): def __init__(self, name, value): self.name = name self.value = value with open('company_data....
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Does my application “contain encryption”?

... iTunes Connect: "How do I know if I can follow the Exporter Registration and Reporting (ERN) process? If your app uses, accesses, implements or incorporates industry standard encryption algorithms for purposes other than those listed as exemptions under question 2, you need to submit for an ERN a...
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Run an untrusted C program in a sandbox in Linux that prevents it from opening files, forking, etc.?

...was wondering if there exists a way to run an untrusted C program under a sandbox in Linux. Something that would prevent the program from opening files, or network connections, or forking, exec, etc? ...
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What is the most efficient/elegant way to parse a flat table into a tree?

..., we can say that all popular SQL databases support recursive queries in standard syntax. WITH RECURSIVE MyTree AS ( SELECT * FROM MyTable WHERE ParentId IS NULL UNION ALL SELECT m.* FROM MyTABLE AS m JOIN MyTree AS t ON m.ParentId = t.Id ) SELECT * FROM MyTree; I tested recursive que...
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Open file via SSH and Sudo with Emacs

...stion|ssh:you@remotehost:/path RET Which connects firstly as bird@bastion, and from there to you@remotehost:/path /su: or /sudo: on remote hosts You can also use this syntax to sudo/su to root (or of course any other user) on a remote host: C-xC-f /ssh:you@remotehost|sudo:remotehost:/path/to/file RE...
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How to UPSERT (MERGE, INSERT … ON DUPLICATE UPDATE) in PostgreSQL?

...o do an upsert, which is what MySQL calls INSERT ... ON DUPLICATE UPDATE and the standard supports as part of the MERGE operation. ...
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Which “href” value should I use for JavaScript links, “#” or “javascript:void(0)”?

...false; } But then they forget to use return doSomething() in the onclick and just use doSomething(). A second reason for avoiding # is that the final return false; will not execute if the called function throws an error. Hence the developers have to also remember to handle any error appropriately...
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What, why or when it is better to choose cshtml vs aspx?

I would like to know what, why or when it is better to choose cshtml and what, why or when it is better to choose aspx technologies? What are these two technologies intended for? ...
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Overloading Macro on Number of Arguments

I have two macros FOO2 and FOO3 : 8 Answers 8 ...