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n-grams in python, four, five, six grams?
...o use the nltk.word_tokenize() function. Also to print the results had to convert the generator object like bigrams, trigrams and fourgrams to list using list(<genrator_object>).
– bhatman
Dec 18 '18 at 5:00
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Infinite Recursion with Jackson JSON and Hibernate JPA issue
When trying to convert a JPA object that has a bi-directional association into JSON, I keep getting
25 Answers
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Can PostgreSQL index array columns?
...ators and the GIN-index type.
Example:
CREATE TABLE "Test"("Column1" int[]);
INSERT INTO "Test" VALUES ('{10, 15, 20}');
INSERT INTO "Test" VALUES ('{10, 20, 30}');
CREATE INDEX idx_test on "Test" USING GIN ("Column1");
-- To enforce index usage because we have only 2 records...
Using arrays or std::vectors in C++, what's the performance gap?
...sing the array around will lose any information about its size (array to pointer conversion). You should use boost::array in that case, which wraps a C++ array in a small class and provides a size function and iterators to iterate over it.
Now the std::vector vs. native C++ arrays (taken from the i...
Creating a blocking Queue in .NET?
...readonly Queue<T> queue = new Queue<T>();
private readonly int maxSize;
public SizeQueue(int maxSize) { this.maxSize = maxSize; }
public void Enqueue(T item)
{
lock (queue)
{
while (queue.Count >= maxSize)
{
Moni...
No ConcurrentList in .Net 4.0?
... (also: on GitHub). My implementation had some problems, which I won't get into here. Let me tell you, more importantly, what I learned.
Firstly, there's no way you're going to get a full implementation of IList<T> that is lockless and thread-safe. In particular, random insertions and removal...
Remove commas from the string using JavaScript
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To remove the commas, you'll need to use replace on the string. To convert to a float so you can do the maths, you'll need parseFloat:
var total = parseFloat('100,000.00'.replace(/,/g, '')) +
parseFloat('500,000.00'.replace(/,/g, ''));
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Retrieve column names from java.sql.ResultSet
...column count starting at 1. You can iterate through column names with for (int i = 1; i <= rsmd.getColumnCount(); i++) String name = rsmd.getColumnName(i);
– Alphaaa
Nov 19 '15 at 7:03
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What is JavaScript's highest integer value that a number can go to without losing precision?
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JavaScript has two number types: Number and BigInt.
The most frequently-used number type, Number, is a 64-bit floating point IEEE 754 number.
The largest exact integral value of this type is Number.MAX_SAFE_INTEGER, which is:
253-1, or
+/- 9,007,199,254,740,991, or...
Can I set background image and opacity in the same property?
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Two methods:
Convert to PNG and make the original image 0.2 opacity
(Better method) have a <div> that is position: absolute; before #main and the same height as #main, then apply the background-image and opacity: 0.2; filter: alph...