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Javascript “Uncaught TypeError: object is not a function” associativity question
...hould use semicolons to properly separate statements:
var postTypes = new Array('hello', 'there'); // <--- Place a semicolon here!!
(function() { alert('hello there') })();
Your code was actually trying to invoke the array object.
...
Representing null in JSON
...= '{"myString": ""}';
var json5 = '{"myString": "null"}';
var json6 = '{"myArray": []}';
console.log(JSON.parse(json1)); // {}
console.log(JSON.parse(json2)); // {myCount: null}
console.log(JSON.parse(json3)); // {myCount: 0}
console.log(JSON.parse(json4)); // {myString: ""}
console.log(JSON.parse(...
Difference between map, applymap and apply methods in Pandas
...ed this book):
Another frequent operation is applying a function on 1D arrays to each column or row. DataFrame’s apply method does exactly this:
In [116]: frame = DataFrame(np.random.randn(4, 3), columns=list('bde'), index=['Utah', 'Ohio', 'Texas', 'Oregon'])
In [117]: frame
Out[117]:
...
How to split/partition a dataset into training and test datasets for, e.g., cross validation?
What is a good way to split a NumPy array randomly into training and testing/validation dataset? Something similar to the cvpartition or crossvalind functions in Matlab.
...
How can you integrate a custom file browser/uploader with CKEditor?
... the ending slash when appropriate
$files = scandir($dir);
$images = array();
foreach($files as $file){
// filter for thumbNail image files (use an empty string for $thumIndicator if not using thumbnails )
if( !preg_match('/'. $thumIndicator .'\.(jpg|jpeg|png|gif)$/i', $file) )
...
What does “dereferencing” a pointer mean?
...nct machine code instruction used
If you get a pointer to an element in an array, you can use pointer arithmetic to move anywhere else in the array, or even to form an address one-past-the-end of the array that's legal to compare with other pointers to elements in the array (or that have similarly b...
What is size_t in C?
...ith
size_t.
As an implication, size_t is a type guaranteed to hold any array index.
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Most efficient way to concatenate strings?
...ring), but here I show the simple case of concatenating all strings in an array into a single string, with no separator. Latest version here is developed and unit-tested on C# 7 and .NET 4.7.
There are two keys to higher performance; the first is to pre-compute the exact total size required. This ...
Are there any open source C libraries with common data structures? [closed]
...ng one is "c-stack: Stack overflow handling, causing program exit."
list
array-list
carray-list
linked-list
avltree-list
rbtree-list
linkedhash-list
avltreehash-list
rbtreehash-list
sublist ( Sequential list data type backed by another list. )
oset (Abstract ordered set.)
array-oset
avltree-oset
...
How do I use the lines of a file as arguments of a command?
...ers, etc), it gets a bit more interesting.
To write to a file, given an array of arguments:
printf '%s\0' "${arguments[@]}" >file
...replace with "argument one", "argument two", etc. as appropriate.
To read from that file and use its contents (in bash, ksh93, or another recent shell with...