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Should I initialize variable within constructor or outside constructor [duplicate]
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@Cromm yes, you can do that, but my point is that it is not a good practice, in my opinion: - if you have a logic, that is not related to actual construction, - if your logic can cause an exception, then you are opening a door to a potential usage of incomplete ...
How to annotate MYSQL autoincrement field with JPA annotations
Straight to the point, problem is saving the object Operator into MySQL DB.
Prior to save, I try to select from this table and it works, so is connection to db.
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Improve INSERT-per-second performance of SQLite
...o faster. For instance, if you have key value pairs, try making the key an INTEGER PRIMARY KEY if possible, which will replace the implied unique row number column in the table.
If you are using multiple threads, you can try using the shared page cache, which will allow loaded pages to be shared bet...
How to enable/disable bluetooth programmatically in android
...ission it's work but if not you need to use startActivityForResult(enableBtIntent, 0); to enable your bluetooth
– Majid Golshadi
Jan 11 '14 at 14:17
1
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Iterating through a JSON object
...e and DECODE
html=response.read().decode('utf8') # new python3 code
# now convert the decoded string into real JSON
loadedjson = json.loads(html)
# print to make sure it worked
print (loadedjson) # works like a charm
# iterate through each key value
for testdata in loadedjson['group']:
print ...
When should TaskCompletionSource be used?
... Thanks, @Frans-Bouma. So TaskCompletionSource is a handy way of converting code that uses the Begin... End... statements into a task?
– Tola Odejayi
Nov 12 '14 at 0:56
3...
Filter Java Stream to 1 and only 1 element
...ial approach in this answer. For customization purposes, it is possible to convert the last get() to orElseThrow()
– arin
Jun 7 '17 at 16:52
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Visual Studio debugging “quick watch” tool and lambda expressions
...ambda expressions in the watch / locals / immediate window. As Marc has pointed out this is incredibly complex. I wanted to dive a bit further into the topic though.
What most people don't consider with executing an anonymous function in the debugger is that it does not occur in a vaccuum. The...
How to Correctly handle Weak Self in Swift Blocks with Arguments
...shing when you use [unowned self] I would guess that self is nil at some point in that closure, which is why you had to go with [weak self] instead.
I really liked the whole section from the manual on using strong, weak, and unowned in closures:
https://developer.apple.com/library/content/documen...
How to specify data attributes in razor, e.g., data-externalid=“23151” on @this.Html.CheckBoxFor(…)
...,
data_externalid = "23521"
}
)
The _ will automatically be converted to - in the resulting markup:
<input type="checkbox" name="MyModel.MyBoolProperty" data-externalid="23521" class="myCheckBox" />
And that's true for all Html helpers taking a htmlAttributes anonymous object...