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Maximum size of an Array in Javascript
...round. I have one array to store data to display, and another which stores ID's of records that have been shown.
7 Answers
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Nested or Inner Class in PHP
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There are several compelling reasons for using them:
It is a way of logically grouping classes that are only used in one place.
If a class is useful to only one other class, then it is logical to
relate and embed it in that class and keep the two together.
It increases encapsulation.
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How do you know when to use fold-left and when to use fold-right?
... (foldl and foldr take an external initial value), and Haskell's "cons" is called (:) not (::), but otherwise this is correct. You may want to add that Haskell additionally provides a foldl'/foldl1' which are strict variants of foldl/foldl1, because lazy arithmetic is not always desirable.
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Elastic search, multiple indexes vs one index and types for different data sets?
...our hardware.
If you are asking what is too much data vs small data? Typically it depends on the processor speed and the RAM of your hardware, the amount of data you store within each variable in your mapping for Elasticsearch and your query requirements; using many facets in your queries is going...
Calling a method every x minutes
I want to call some method on every 5 minutes. How can I do this?
7 Answers
7
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Two inline-block, width 50% elements wrap to second line [duplicate]
I would like to have two columns of 50% width space, and avoid floats.
So i thought using display:inline-block .
5 Answers...
How do I find Waldo with Mathematica?
..., ZIP code readers, and strokeless handwriting recognition work today. Basically you know the answer is there, you know more or less what it should look like, and everything else may have common elements, but is definitely "not it", so you don't bother with the "not it"s, you just look of the likeli...
Creating a singleton in Python
...ample implementation:
class Singleton(type):
_instances = {}
def __call__(cls, *args, **kwargs):
if cls not in cls._instances:
cls._instances[cls] = super(Singleton, cls).__call__(*args, **kwargs)
return cls._instances[cls]
class Logger(object):
__met...
Remove CSS class from element with JavaScript (no jQuery) [duplicate]
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The right and standard way to do it is using classList. It is now widely supported in the latest version of most modern browsers:
ELEMENT.classList.remove("CLASS_NAME");
remove.onclick = () => {
const el = document.querySelector('#el');
if (el.classList.contains("red")) {
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Call apply-like function on each row of dataframe with multiple arguments from each row
...dataframe with multiple columns. For each row in the dataframe, I want to call a function on the row, and the input of the function is using multiple columns from that row. For example, let's say I have this data and this testFunc which accepts two args:
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