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How to make the first option of selected with jQuery

...l($("#target option:first").val()); will work in IE6, because you are literally looking up the first value, and entering it as target's value. Two id lookups instead of one. – Nicholi Feb 4 '12 at 1:56 ...
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Proper way to handle multiple forms on one page in Django

...ta. Include some hidden inputs if your froms don't have unique fields with all possible values being not empty. – Denis Otkidach Oct 24 '09 at 16:39 14 ...
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What are the differences between concepts and template constraints?

...To quickly summarise their meanings: Constraint - A predicate over statically evaluable properties of a type. Purely syntactic requirements. Not a domain abstraction. Axioms - Semantic requirements of types that are assumed to be true. Not statically checked. Concepts - General, abstract requireme...
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How to get HTTP Response Code using Selenium WebDriver

... the response code of a http request using Selenium and Chrome or Firefox. All you have to do is start either Chrome or Firefox in logging mode. I will show you some examples below. java + Selenium + Chrome Here is an example of java + Selenium + Chrome, but I guess that it can be done in any lang...
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.htaccess mod_rewrite - how to exclude directory from rewrite rule

...ries on my server from these rules, so they can become accessible. For now all requests are sent to index.php file. 6 Answ...
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How to unload a package without restarting R

...nt version and a stable version in different libraries). To guarantee that all copies are detached, use this function. detach_package <- function(pkg, character.only = FALSE) { if(!character.only) { pkg <- deparse(substitute(pkg)) } search_item <- paste("package", pkg, sep = ":...
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How do I determine the size of my array in C?

... It should be the case with all compilers, since the results of sizeof is defined as a compile-time constant. – Mark Harrison Sep 22 '13 at 5:39 ...
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When should one use a 'www' subdomain?

...bility to set a cross-subdomain cookie. This seems evident, but this means allowing authenticated users to move between your subdomains is more of a technical challenge. So ask yourself some questions. Do I set cookies? Do I care about potentially needless bandwidth expenditure? Will authenticated ...
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PHP json_decode() returns NULL with valid JSON?

...ters since I started the application and there were no problems before. Locally, the JSON decoding works perfectly. On my server, it doesn't. And I can't call json_last_error() because it's PHP 5.2.9. That function appears on PHP 5.3.0. – Joel A. Villarreal Bertoldi ...
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MySQL “between” clause not inclusive?

...t; 23:59:59 and t < 24:00:00. Why deal with poorly specified BETWEEN at all? Rather follow David's advice and use: WHERE dob >= '2011-01-01' AND dob < '2011-02-01'. Best performance, and it works every time. – Disillusioned Feb 27 '17 at 9:13 ...