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Difference between freeze and seal
...led object itself (most commonly in strict mode)
Object.freeze
Exactly what Object.seal does, plus:
It prevents modifying any existing properties
Neither one affects 'deep'/grandchildren objects. E.g., if obj is frozen, obj.el can’t be reassigned, but the value of obj.el could be modified, e...
Computed read-only property vs function in Swift
...ding both a getter and a setter in your subclass property override" but... what variable does the setter write to?
– Dan Rosenstark
Nov 2 '15 at 18:00
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How can I open a cmd window in a specific location?
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This might be what you want:
cmd /K "cd C:\Windows\"
Note that in order to change drive letters, you need to use cd /d. For example:
C:\Windows\System32\cmd.exe /K "cd /d H:\Python\"
(documentation)
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Should I initialize variable within constructor or outside constructor [duplicate]
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Great answer! What if I have a class with a field with a default value in style 2, but then I need to extend that class and want to have a different default for the subclass. Should I now use style 1 for the subclass and keep style 2 for t...
HTML5 Video Dimensions
...dth; // returns the intrinsic width of the video
Spec: https://html.spec.whatwg.org/multipage/embedded-content.html#the-video-element
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How do I detect “shift+enter” and generate a new line in Textarea?
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This is exactly what I wanted. Thanks.
– Taku Yoshi
Apr 13 at 14:19
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Switch on Enum in Java [duplicate]
...ve always written an instance method on my enum instead along the lines of what Josh Bloch suggests. In my Day enum, I add public string tellItLikeItis() { return "Midweek days are so-so."; } then have MONDAY, FRIDAY, SATURDAY, and SUNDAY override that method.
– GlenPeterson
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How to check whether a given string is valid JSON in Java
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It depends on what you are trying to prove with your validation.
Certainly parsing the json as others have suggested is better than using regexes, because the grammar of json is more complicated than can be represented with just regexes.
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Error while installing json gem 'mkmf.rb can't find header files for ruby'
...specific. I think instead of ruby-dev its ruby-devel. Here's where I found what I exactly needed - digitalocean.com/community/articles/…
– Navneet
Dec 13 '13 at 23:04
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How to list the contents of a package using YUM?
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@Levit: Pretty sure what dimadima is trying to say is that this doesn't strictly answer the question -- you're not using yum but rpm which has the major implication that the package needs to be installed (which OP didn't explicitly say was his s...