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Const in JavaScript: when to use it and is it necessary?
I've recently come across the const keyword in JavaScript. From what I can tell, it is used to create immutable variables , and I've tested to ensure that it cannot be redefined (in Node.js):
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How set the android:gravity to TextView from Java side in Android
... only goes half way, not clearly stating where I get the gravity constants from (Gravity.CENTER etc).
– Hein du Plessis
Oct 9 '12 at 5:41
1
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Compiling dynamic HTML strings from database
...ar called 'pageContent'. This var gets assigned dynamically generated HTML from a database. When the user flips to the next page, a called to the DB is made, and the pageContent var is set to this new HTML, which gets rendered onscreen through ng-bind-html-unsafe. Here's the code:
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How to convert object array to string array in Java
...ork. It throws java.lang.ArrayStoreException. I'm getting the object array from the toArray method on a generic ArrayList containing my custom type. Is this not expected to work with generics or something?
– Ian Varley
Feb 7 '10 at 19:41
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What is the maximum length of latitude and longitude? [closed]
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Valid longitudes are from -180 to 180 degrees.
Latitudes are supposed to be from -90 degrees to 90 degrees, but areas very near to the poles are not indexable.
So exact limits, as specified by EPSG:900913 / EPSG:3785 / OSGEO:41001 are the follo...
“for” vs “each” in Ruby
...t; x
NameError: undefined local variable or method `x' for main:Object
from (irb):2
from :0
for:
irb> for x in [1,2,3]; end
=> [1, 2, 3]
irb> x
=> 3
With the for loop, the iterator variable still lives after the block is done. With the each loop, it doesn't, unless it wa...
Java, List only subdirectories from a directory, not files
In Java, How do I list only subdirectories from a directory?
13 Answers
13
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Python loop that also accesses previous and next values
...lement, and end iterating at the last-but-one element. So index should run from 1 ... (l-1), not 0 ... l as you have here, and no need for the special-cased if-clauses. Btw, there is a parameter enumerate(..., start=1) but not for end. So we don't realy want to use enumerate().
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Difference between abstraction and encapsulation?
.... The only thing that has to change is the compare function, which differs from data type to data type. qsort therefore expects the user to provide said compare function as a function argument.
Encapsulation and abstraction go hand in hand so much so that you could make the point that they are tru...
How to use support FileProvider for sharing content to other apps?
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Using FileProvider from support library you have to manually grant and revoke permissions(at runtime) for other apps to read specific Uri. Use Context.grantUriPermission and Context.revokeUriPermission methods.
For example:
//grant permision...