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Adding a new array element to a JSON object
I have a JSON format object I read from a JSON file that I have in a variable called teamJSON, that looks like this:
6 Answ...
How can I check for “undefined” in JavaScript? [duplicate]
...o be what they are. I don't hear people telling me that I shouldn't use setTimeout because someone can
window.setTimeout = function () {
alert("Got you now!");
};
Bottom line, the "it can be redefined" argument to not use a raw === undefined is bogus.
(If you are still scared of undefined b...
Filtering a list based on a list of booleans
...= [1, 2, 4, 6]
>>> fil = [True, False, True, False]
>>> %timeit list(compress(list_a, fil))
100000 loops, best of 3: 2.58 us per loop
>>> %timeit [i for (i, v) in zip(list_a, fil) if v] #winner
100000 loops, best of 3: 1.98 us per loop
>>> list_a = [1, 2, 4, 6]*...
Get the closest number out of an array
...st item.
You should also keep in mind that, unless you need to do it many times per second, the efficiency improvements will be mostly unnoticable unless your data sets get much larger.
If you do want to try it that way (and can guarantee the array is sorted in ascending order), this is a good sta...
How to compare arrays in JavaScript?
...(!array)
return false;
// compare lengths - can save a lot of time
if (this.length != array.length)
return false;
for (var i = 0, l=this.length; i < l; i++) {
// Check if we have nested arrays
if (this[i] instanceof Array && array[i] instance...
Recommended way to stop a Gradle build
...s ago when I wrote this, the message printed did differ (but that's a long time and I don't feel like figuring out what version was current at that time and checking). Beyond that, IMHO ant.fail more clearly communicates the intent to fully stop the build, whereas the thrown exception reads as somet...
How do I determine whether my calculation of pi is accurate?
...remely slowly (when I compared my result with the online values after some time). Anyway, I am trying better algorithms.
5 ...
How to declare variable and use it in the same Oracle SQL script?
...morestupidvar
FROM dual
END;
END;
Hope this saves you some time
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REST HTTP status codes for failed validation or invalid duplicate
I'm building an application with a REST-based API and have come to the point where i'm specifying status codes for each requests.
...
What is the difference between typeof and instanceof and when should one be used vs. the other?
...s which being checked. In most cases this is the desired behavior, but sometimes it's not. So you need to keep that mind.
Another problem is that different scopes have different execution environments. This means that they have different built-ins (different global object, different constructors,...