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Is the primary key automatically indexed in MySQL?
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If primary key is always indexed why do people when talking about database architecture/performance always advise SQL newcomers to "make sure their database is properly indexed"?
– tim peterson
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RuntimeException: Unable to instantiate application
... reuse or recycle the previous opened activity/view from the same package (if you haven't closed the previous installed app yet). It has nothing to do with your app, moreover, it is very unlikely that your app will get freezed or crashed cause by this verbose error message on end user's device.
It ...
How do I enable standard copy paste for a TextView in Android?
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Just a note on this, if your text view is initially hidden and you are showing it programatically using setVisibility, then you need to use textView.setTextIsSelectable(true) to make this work. It won't work via xml in that case.
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Converting user input string to regular expression
...he program will display the results when that function is run with the specified arguments. Naturally there will be extra text boxes for the extra arguments to replace and such.
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How can I check the syntax of Python script without executing it?
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won't work if you have an embedded engine with injected modules
– n611x007
Feb 18 '13 at 13:41
57
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Python integer incrementing with ++ [duplicate]
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Agreed with @rickcnagy, more like the "how to do it?" (if you really don't care about brevity of code you could also simply do number = number + 1) the reasoning on why ++ and -- don't exist in Python seems more useful.
– AirieFenix
May 3 '1...
What's the best way to limit text length of EditText in Android
...r.LengthFilter, so when programmatically changing it's filter, you have modified its XML filter as well.
– mr5
Aug 1 '15 at 3:00
22
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Can I escape html special chars in javascript?
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You can even use it on a fresh element if you just want to convert like this: const str = "foo<>'\"&"; $('<div>').text(str).html() yields foo&lt;&gt;'"&amp;
– amoebe
Nov 14 '17 at 21:46
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Each for object? [duplicate]
...stand the implications of using a normal for-loop and see use for it's specific characteristics like looping over the property chain.
But usually, a for-loop doesn't work better than jQuery or Object.keys().map(). I'll go into two potential issues with using a plain for-loop below.
Right, so al...
Create timestamp variable in bash script
...he current time whenever I issue echo $timestamp . It proving to be more difficult then I thought. Here are some things I've tried:
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