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Is there any way to put malicious code into a regular expression?
...l comes down to a classic time–space trade‐off.
With a DFA, you spend more time building it (and allocating more states), whereas with an NFA you spend more time executing it, since it can be multiple states at the same time, and backtracking can eat your lunch — and your CPU.
Denial‐of‐...
iphone Core Data Unresolved error while saving
...f NSError objects in the "top level" NSError object it returns if there is more than one problem (This is why you see error 1560, which indicates multiple problems, and an array of error 1570s). It appears that CoreData has a handful of keys it uses to stash information in the error it returns if t...
Run a Python script from another Python script, passing in arguments [duplicate]
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How do I get ASP.NET Web API to return JSON instead of XML using Chrome?
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How do I detect when someone shakes an iPhone?
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How to create the most compact mapping n → isprime(n) up to a limit N?
...ent a pseudo-prime test based on Fermat's little theorem. If I really want more speed (i.e. avoid O(sqrt(N)) algorithm altogether), I precompute the false positives (see Carmichael numbers) and do a binary search. This is by far the fastest test I've ever implemented, the only drawback is that the r...
How to round up the result of integer division?
...m in mid-2017 stumbling across this great answer after trying several much more complex approaches.
– Mifo
Jul 29 '17 at 23:41
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Check if a value is an object in JavaScript
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What is this 'Lambda' everyone keeps speaking of?
...ut there are other higher order functions, like forEach, that perform much more useful tasks. For example filter:
var numbers = [1, 2, 3, 4];
var even = [];
// keep all even numbers from above array
for (var i=0; i<numbers.length; i++) {
if (numbers[i] % 2 === 0) {
even.push(numb...
Passing arguments to “make run”
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@Rob: $() is more portable, it works in Nmake as well as make.
– John Knoeller
Feb 6 '10 at 20:33
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