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Why are primes important in cryptography?
One thing that always strikes me as a non-cryptographer: Why is it so important to use Prime numbers? What makes them so special in cryptography?
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JavaScript: filter() for Objects
ECMAScript 5 has the filter() prototype for Array types, but not Object types, if I understand correctly.
15 Answers
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Could not load file or assembly 'Newtonsoft.Json' or one of its dependencies. Manifest definition do
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To solve this, I ensured all my projects used the same version by running the following command and checking the results:
update-package Newtonsoft.Json -reinstall
And, lastly I removed the following from my web.config:
<dependentAssembly>
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How do I check if file m>ex m>ists in jQuery or pure JavaScript?
...s looking for. Just remember, you will always get zero unless you load the content first!. ie: window.addEventListener('load', function(){
– SpiRail
Jun 27 '12 at 19:05
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Setting Environment Variables for Node to retrieve
....env.USER_KEY respectively. You don't need to edit them, just access their contents.
It looks like they are simply giving you the choice between loading your USER_ID and USER_KEY from either process.env or some specificed file on disk.
Now, the magic happens when you run the application.
USER_ID...
Are HTTP cookies port specific?
..., even though the usual "same-origin policy" used by web browsers isolates content retrieved via different ports.
And also:
8.5. Weak Confidentiality
Cookies do not provide isolation by port. If a cookie is readable by a service running on one port, the cookie is also readable by a serv...
Is it a bad practice to use an if-statement without curly braces? [closed]
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The problem with the first version is that if you go back and add a second statement to the if or else clauses without remembering to add the curly braces, your code will break in unm>ex m>pected and amusing ways.
Maintainability-wise, it'...
Do I need all three constructors for an Android custom view?
When creating a custom view, I have noticed that many people seem to do it like this:
6 Answers
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TypeError: 'module' object is not callable
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Assume that the content of YourClass.py is:
class YourClass:
# ......
If you use:
from YourClassParentDir import YourClass # means YourClass.py
In this way, I got TypeError: 'module' object is not callable if you then tried to use...
Change Default Scrolling Behavior of UITableView Section Header
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The way I solved this problem is to adjust the contentOffset according to the contentInset in the UITableViewControllerDelegate (m>ex m>tends UIScrollViewDelegate) like this:
- (void)scrollViewDidScroll:(UIScrollView *)scrollView {
CGFloat sectionHeaderHeight = 40;
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