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Accessing members of items in a JSONArray with Java

...ust getting started with using json with java. I'm not sure how to access string values within a JSONArray. For instance, my json looks like this: ...
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What is the use case of noop [:] in bash?

...can discover that : ignores them. Mostly, you are just making the shell do extra work in expanding * to a list of files in the current directory; it won't actually affect how the script works. – chepner Nov 5 '14 at 14:48 ...
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How to use knockout.js with ASP.NET MVC ViewModels?

...HttpPost] public ActionResult Index(CourseVM model) { if (!string.IsNullOrWhiteSpace(model.StudentsSerialized)) { model.StudentViewModels = JsonConvert.DeserializeObject<List<StudentVm>>(model.StudentsSerialized); model.StudentsSerialized =...
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How do I log a Python error with debug information?

... problem is that traceback lines could have \n inside, so we need to do an extra work to get rid of this line endings: import logging logger = logging.getLogger('your_logger_here') def log_app_error(e: BaseException, level=logging.ERROR) -> None: e_traceback = traceback.format_exception(e...
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What's the difference between @JoinColumn and mappedBy when using a JPA @OneToMany association

...y @Entity public class Company { private int companyId; private String companyName; private List<Branch> branches; @Id @GeneratedValue @Column(name="COMPANY_ID") public int getCompanyId() { return companyId; } public void setCompanyId(int compan...
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Check if a given key already exists in a dictionary

... this also avoids an extra allocation. (important for making tight loops a bit faster) – nurettin Dec 9 '18 at 9:19 add a...
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MySQL load NULL values from CSV data

...ual field value to NULL, if the local variable ends up containing an empty string: LOAD DATA INFILE '/tmp/testdata.txt' INTO TABLE moo FIELDS TERMINATED BY "," LINES TERMINATED BY "\n" (one, two, three, @vfour, five) SET four = NULLIF(@vfour,'') ; If they're all possibly empty, then you'd read th...
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How to make part of the text Bold in android at runtime?

A ListView in my application has many string elements like name , experience , date of joining , etc. I just want to make name bold. All the string elements will be in a single TextView . ...
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Multiline strings in VB.NET

Is there a way to have multiline strings in VB.NET like Python 21 Answers 21 ...
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How to strike through obliquely with css

...e a border, then rotate it with a CSS transform. Doing it this way adds no extra elements to the DOM, and adding/removing the strikethrough is a simple as adding/removing the class. Here's a demo Caveats This will only work down to IE8. IE7 does not support :before, however will degrade graceful...