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Remove json element
...n.foo from the dictionary.
You can use splice to remove elements from an array.
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Listing all permutations of a string/integer
... Main()
{
string str = "sagiv";
char[] arr = str.ToCharArray();
GetPer(arr);
}
}
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How to get indices of a sorted array in Python
...n available:
>>> import numpy
>>> numpy.argsort(myList)
array([0, 1, 2, 4, 3])
http://docs.scipy.org/doc/numpy/reference/generated/numpy.argsort.html
This returns the arguments that would sort the array or list.
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Null check in an enhanced for loop
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Use ArrayUtils.nullToEmpty from the commons-lang library for Arrays
for( Object o : ArrayUtils.nullToEmpty(list) ) {
// do whatever
}
This functionality exists in the commons-lang library, which is included in most Java pr...
python numpy ValueError: operands could not be broadcast together with shapes
In numpy, I have two "arrays", X is (m,n) and y is a vector (n,1)
6 Answers
6
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How can I transform string to UTF-8 in C#?
...ault is GB2312, then Encoding.Default.GetBytes will encode string to byte array use GB2312 encoder, then Encoding.UTF8.GetString will try to decode the byte array use UTF8 decoder, the result should be wrong, but why this works. @anothershrubery
– guorongfei
F...
How do you use the ellipsis slicing syntax in Python?
...nsion, you can use the ellipsis notation
>>> a[..., 0].flatten()
array([ 0, 2, 4, 6, 8, 10, 12, 14])
which is equivalent to
>>> a[:,:,:,0].flatten()
array([ 0, 2, 4, 6, 8, 10, 12, 14])
In your own implementations, you're free to ignore the contract mentioned above and...
Programmatically update widget from activity/service/receiver
...ss);
intent.setAction(AppWidgetManager.ACTION_APPWIDGET_UPDATE);
// Use an array and EXTRA_APPWIDGET_IDS instead of AppWidgetManager.EXTRA_APPWIDGET_ID,
// since it seems the onUpdate() is only fired on that:
int[] ids = AppWidgetManager.getInstance(getApplication())
.getAppWidgetIds(new ...
How to iterate over array of objects in Handlebars?
...dle.net/streethawk707/a9ssja22/.
Below are the two ways of iterating over array. One is with direct json passing and another is naming the json array while passing to content holder.
Eg1: The below example is directly calling json key (data) inside small_data variable.
In html use the below code:...
When to use nil, blank, empty? [duplicate]
...may be used to check on various object types like empty string "" or empty array []
blank? - checks for nil? or empty?.
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