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How to check 'undefined' value in jQuery

... JQuery library was developed specifically to simplify and to unify certain JavaScript functionality. However if you need to check a variable against undefined value, there is no need to invent any special method, since JavaScript has a typeof operator, which is...
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How do you convert Html to plain text?

...ward if you don't have to worry about things like <script> tags. If all you need to do is display the text without the tags you can accomplish that with a regular expression: <[^>]*> If you do have to worry about <script> tags and the like then you'll need something a bit mo...
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How can I do string interpolation in JavaScript?

... @LaughingLemonade Backward compatibility. If it was implemented that way, all the existing code which prints a string in that format will fail. – thefourtheye Dec 21 '18 at 7:02 2...
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HTTP header line break style

...0)> HTTP/1.1 defines the sequence CR LF as the end-of-line marker for all protocol elements except the entity-body RFC2616 was technically obsoleted by RFC7230, but it makes no drastic changes and again calls out CRLF as the delimiter in section 3, and that RFC references RFC5234, Appendix B....
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Business logic in MVC [closed]

... You should be able to test your business logic without touching the UI at all. share | improve this answer | follow | ...
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Python unittest - opposite of assertRaises?

...the correct solution in fact. The solution proposed by user9876 is conceptually flawed: if you test for the non-raising of say ValueError, but ValueError is instead raised, your test must exit with a failure condition, not an error one. On the other hand, if in running the same code you would raise ...
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ReactJS - Does render get called any time “setState” is called?

Does React re-render all components and sub components every time setState() is called? 7 Answers ...
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Good or bad practice for Dialogs in wpf with MVVM?

... What if instead of using services, one uses a sort of Callback to facilitate interaction with the ViewModel and the View? For example, View executes a Command in the ViewModel, then when all is said and done, the ViewModel fires a Callback for the View to display the results of t...
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When are you supposed to use escape instead of encodeURI / encodeURIComponent?

... section B.2.1.2 escape and the introduction text of Annex B says: ... All of the language features and behaviours specified in this annex have one or more undesirable characteristics and in the absence of legacy usage would be removed from this specification. ... ... Programmers should not us...
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Padding between ActionBar's home icon and title

...ution. I used it and @Alesqui is right - the app icon changed and became smaller... You could change icon but since dp is different for different phones then this solution doesn't cut it in a production app. – Johan S Mar 20 '13 at 18:43 ...