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Base64 Decoding in iOS 7+
...r years i've been using some ridiculous amount of code to decode a string, and all along there was a 2 line solution.
– AlBeebe
Apr 3 '14 at 3:32
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Proper use of errors
I'm using TypeScript for a reasonably large project, and am wondering what the standard is for the use of Error s. For example, say I hand an index out of bounds exception in Java:
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Spring Expression Language (SpEL) with @Value: dollar vs. hash ($ vs. #)
... ${...} . Furthermore, when I started with SpEL I was told to use ${...} and it works fine.
4 Answers
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Convert JSON style properties names to Java CamelCase names with GSON
...lowing setting works perfect when reading json with underscored attributes and using camelcasing in my models.
Gson gson = new GsonBuilder()
.setFieldNamingPolicy(FieldNamingPolicy.LOWER_CASE_WITH_UNDERSCORES)
.create()
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How do I modify a MySQL column to allow NULL?
...ge case which is the TIMESTAMP type, which depending on your MySQL version and config can be NOT NULL specifying NULL as suggested by @ConroyP is more correct.
– Matthew Buckett
Jan 26 '16 at 13:37
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How to create and handle composite primary key in JPA
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You can make an Embedded class, which contains your two keys, and then have a reference to that class as EmbeddedId in your Entity.
You would need the @EmbeddedId and @Embeddable annotations.
@Entity
public class YourEntity {
@EmbeddedId
private MyKey myKey;
@Column(name ...
onCreateOptionsMenu inside Fragments
...nu.menu_sample, menu);
super.onCreateOptionsMenu(menu,inflater);
}
And in onCreate add this line to make the options appear in your Toolbar
setHasOptionsMenu(true);
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Convert an integer to a float number
...oint numbers
complex64 the set of all complex numbers with float32 real and imaginary parts
complex128 the set of all complex numbers with float64 real and imaginary parts
byte alias for uint8
rune alias for int32
Which means that you need to use float64(integer_value).
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Finding child element of parent pure javascript
... document.querySelectorAll('.parent .child1');
The difference between qS and qSA is that the latter returns all elements matching the selector, while the former only returns the first such element.
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How to compare strings ignoring the case
I want apple and Apple comparison to be true .
Currently
5 Answers
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