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Array vs. Object efficiency in JavaScript
...talking about lookup's in a large data set where you use a object as a map then a object is more efficient. jsperf.com/array-vs-object-performance/35
– f1v
Feb 14 '14 at 17:07
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Set a default parameter value for a JavaScript function
...efaultFor(arg, val) { return typeof arg !== 'undefined' ? arg : val; } and then you can call it as a = defaultFor(a, 42);
– Camilo Martin
Sep 2 '12 at 5:56
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How to assign from a function which returns more than one value?
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(1) list[...]<- I had posted this over a decade ago on r-help. Since then it has been added to the gsubfn package. It does not require a special operator but does require that the left hand side be written using list[...] like this:
library(gsubfn) # need 0.7-0 or later
list[a, b] <- func...
Is there a “vim runtime log”?
...ntally typed <Space> at the hit-enter prompt.
For example try :!ls then cancel the prompt, then hit g<.
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What are valid values for the id attribute in HTML?
...r hyphens or underscores (but not both, pick one and never use the other), then you have an easy-to-remember pattern. You will never wonder "was it firstName or FirstName?" because you will always know that you should type first_name. Prefer camel case? Then limit yourself to that, no hyphens or und...
Impossible to make a cached thread pool with a size limit?
...s a while ago, so there is a chance some behavior might have changed since then (I didn't follow the latest activities too closely), but assuming these behavior are unchanged, #2 is correct as stated, and that's perhaps the most important (and somewhat surprising) point of this. Once the core size i...
How can I send large messages with Kafka (over 15MB)?
...and make sure the messages are replicated correctly. If this is too small, then the message will never be replicated, and therefore, the consumer will never see the message because the message will never be committed (fully replicated).
Broker side: message.max.bytes - this is the largest size of th...
How to parse an RSS feed using JavaScript?
... based on that code, could you add a prompt for entering feed url, then concatenate the property to include a value in order to parse whatever rss feed you wanted? for example, if I was dealing with multiple images, I could concatenate the string and value: document.getElementById('image').s...
How to smooth a curve in the right way?
...es least squares to regress a small window of your data onto a polynomial, then uses the polynomial to estimate the point in the center of the window. Finally the window is shifted forward by one data point and the process repeats. This continues until every point has been optimally adjusted relativ...
Most efficient way to remove special characters from string
...arge each time you call the method (and if you call the method frequently) then the method becomes the slowest by far, and causes a lot of work for the garbage collector.
– Guffa
May 5 '15 at 7:36
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