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Category: Lập trình
How to create a temporary file to store data
Your application has to write data out in a temporary file to reprocess them before rendering to users. The file will be created temporarily and swept our when the application…
Fastest way to get the first n elements of a List into an Array
def s = ‘Hello Groovy world!’ assert s.take(5) == ‘Hello’ assert s.drop(6) == ‘Groovy world!’ Python Let’s assume an arbitrary list/array: in_list = list(range(10)) // Python2: in_list = range(10) //…
Checking existence of an element in an array with JavaScript
JavaScript is a loosely typed or a dynamic language. Variables in JavaScript are not directly associated with any particular value type, and any variable can be assigned (and reassigned) values…