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Will Dispose() be called in a using statement with a null object?

... Note that even if your variable is null, the using block is executed, and if you reference your variable inside the using block without first null-checking it, you WILL get NullReferenceException. To prevent misinterpretation, this answer should state: "Yes, Dispose() is only...
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How do I know if a generator is empty from the start?

...rated = False # Nothing is lost here. if nothing is generated, # the for block is not executed. Often, that's the only check # you need to do. This can be done in the course of doing # the work you wanted to do anyway on the generated output. for thing in my_generator(): thing_generated = True...
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Design RESTful query API with a long list of query parameters [closed]

...of them as query parameters, the URL can get quite long (long enough to be blocked by some firewall). 4 Answers ...
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What do querySelectorAll and getElementsBy* methods return?

...; height: 50px; margin: 5px; background: blue; display: inline-block; } <div class='box'></div> <div class='box'></div> <div class='box'></div> <div class='box'></div> As you can see inside the code snippet, after using Array.fr...
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How to reference a file for variables using Bash?

...bar #unleash_virus are safe. It's not easy to sanitize properly and not to block some harmless syntax anyway, especially when you think of every possible quoting and escaping. – Kamil Maciorowski Jun 8 '19 at 19:30 ...
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How do I open the SearchView programmatically?

...acy project and this workaround is acceptable for me. Initialize variables block val searchMenuItem = menu.findItem(R.id.menu_search_item) val searchView = searchMenuItem.actionView as SearchView How to expand SearchView: Handler().post { searchMenuItem.expandActionView() } Reason why post() he...
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Parsing query strings on Android

... import org.eclipse.jetty.util.*; URL url = new URL("www.example.com/index.php?foo=bar&bla=blub"); MultiMap<String> params = new MultiMap<String>(); UrlEncoded.decodeTo(url.getQuery(), params, "UTF-8"); assert params.getString("foo").equals("bar"); assert params.getString("bla").equ...
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Convert MySQL to SQlite [closed]

...stracts specific database differences away for you. e.g. you get these in PHP (RedBean), Python (Django's ORM layer, Storm, SqlAlchemy), Ruby on Rails (ActiveRecord), Cocoa (CoreData) etc. i.e. you could do this: Load data from source database using the ORM class. Store data in memory or seriali...
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parsing JSONP $http.jsonp() response in angular.js

...K": JSON_CALLBACK(json_response); // wrong! Since I was writing my own PHP server script, I thought I knew what function name it wanted and didn't need to pass "callback=JSON_CALLBACK" in the request. Big mistake! AngularJS replaces "JSON_CALLBACK" in the request with a unique function name (l...
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Make a DIV fill an entire table cell

...not to the td. You can fix this on Chrome by making the div display:inline-block, but it doesn't work on IE. That's proving trickier... share | improve this answer | follow ...