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Numpy: find first index of value fast
How can I find the index of the first occurrence of a number in a Numpy array?
Speed is important to me. I am not interested in the following answers because they scan the whole array and don't stop when they find the first occurrence:
...
Convert Data URI to File then append to FormData
...it(':')[1].split(';')[0];
// write the bytes of the string to a typed array
var ia = new Uint8Array(byteString.length);
for (var i = 0; i < byteString.length; i++) {
ia[i] = byteString.charCodeAt(i);
}
return new Blob([ia], {type:mimeString});
}
From there, appendi...
Ways to iterate over a list in Java
...static void main(String []args){
List<Integer> numbers = new ArrayList<Integer>();
// populates list with initial values
for (Integer i : Arrays.asList(0,1,2,3,4,5,6,7))
numbers.add(i);
printList(numbers); // 0,1,2,3,4,5,6,7
/...
Android Reading from an Input stream efficiently
...d creating new String objects on each append and to avoid copying the char arrays. The implementation for your case would be something like this:
BufferedReader r = new BufferedReader(new InputStreamReader(inputStream));
StringBuilder total = new StringBuilder();
for (String line; (line = r.readLin...
Get Base64 encode file-data from Input Form
...y:
If you want to try it the hard way (or it doesn't work), look at readAsArrayBuffer(). This will give you a Uint8Array and you can use the method specified. This is probably only useful if you want to mess with the data itself, such as manipulating image data or doing other voodoo magic before yo...
Setting element of array from Twig
How can I set member of an already existing array from Twig?
10 Answers
10
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javascript pushing element at the beginning of an array [duplicate]
I have an array of objects and I'd like to push an element at the beginning of the of the array.
3 Answers
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How to filter array in subdocument with MongoDB [duplicate]
I have array in subdocument like this
3 Answers
3
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What is the difference between MOV and LEA?
... parentheses different than how mov does.
Think of C. Let's say I have an array of long that I call array. Now the expression array[i] performs a dereference, loading the value from memory at the address array + i * sizeof(long) [1].
On the other hand, consider the expression &array[i]. This s...
What is a elegant way in Ruby to tell if a variable is a Hash or an Array?
...esponds to :each
If you really want to know the type and if it is Hash or Array then you can do:
["Hash", "Array"].include?(@some_var.class) #=> check both through instance class
@some_var.kind_of?(Hash) #=> to check each at once
@some_var.is_a?(Array) #=> same as kind_of
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