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How JavaScript closures are garbage collected

...ither you set some=null when you don't need it anymore, or you set window.f_ = null; and it will be gone. Update I have tried it in Chrome 30, FF25, Opera 12 and IE10 on Windows. The standard doesn't say anything about garbage collection, but gives some clues of what should happen. Section 13...
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What is the $? (dollar question mark) variable in shell scripting? [duplicate]

...al Parameters" http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_05_02 : ? Expands to the decimal exit status of the most recent pipeline (see Pipelines). man bash "Special Parameters": The shell treats several parameters specially. These parameters may only be refe...
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Ruby: Easiest Way to Filter Hash Keys?

...with just the choices in it. choices = params.select { |key, value| key.to_s.match(/^choice\d+/) } or you can use delete_if and modify the existing Hash e.g. params.delete_if { |key, value| !key.to_s.match(/choice\d+/) } or if it is just the keys and not the values you want then you can do: p...
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Set Focus on EditText

...Focus()) { getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE); } EDIT: Adding extra info to the answer after the checkLiganame method was added. In the checkLiganame method you check if the cursor is null. The cursor will always return an object, so the c...
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Change Bootstrap input focus blue glow

...put-border-focus variable. See the commit for more info and warnings. In _variables.scss update @input-border-focus. To modify the size/other parts of this glow modify the mixins/_forms.scss @mixin form-control-focus($color: $input-border-focus) { $color-rgba: rgba(red($color), green($color), ...
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Spring Cache @Cacheable - not working while calling from another method of the same bean

...e the AspectJ solution. @Service @Scope(proxyMode = ScopedProxyMode.TARGET_CLASS) class AService { private final AService _aService; @Autowired public AService(AService aService) { _aService = aService; } @Cacheable("employeeData") public List<EmployeeData> ...
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C++: what regex library should I use? [closed]

... curious to know more on TR1 and C++0x, see en.wikipedia.org/wiki/Technical_Report_1 – Stéphane Oct 8 '08 at 7:36 As ...
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What is the difference between log4net and ELMAH?

...,error) with log4net but store it in ELMAH nuget.org/packages/elmahappender_log4net_1.2.10 – Sturla Feb 18 '14 at 16:21 add a comment  |  ...
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How to fix HTTP 404 on Github Pages?

... In my case, I had folders whose names started with _ (like _css and _js), which GH Pages ignores as per Jekyll processing rules. If you don't use Jekyll, the workaround is to place a file named .nojekyll in the root directory. ...
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What exactly does git's “rebase --preserve-merges” do (and why?)

...B --not $(git merge-base --all A B) Replay the commits: Create a branch B_new, on which to replay our commits. Switch to B_new (i.e. "git checkout B_new") Proceeding parents-before-children (--topo-order), replay each commit c in C on top of B_new: If it's a non-merge commit, cherry-pick a...