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Difference between class and type
...its structure, namely how much memory it takes up, how it is laid out, and more importantly, how you can interact with it.
Examples of primitive types:
int
float
char
boolean
Examples of class types:
String
Integer
Boolean
ArrayList
StringBuilder
Examples of interface types:
Collection
Li...
What is the difference between a symbolic link and a hard link?
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What is the purpose of Verifiable() in Moq?
...ith Looking back, don't think I put it strongly enough. There is massively more benefit from splitting your work into AAA bundling than overconcentrating on commonalities between the Arrange and Assert phase. 90% of the time, there's something to be gained from the nuances of how you express the Ver...
Best way to create enum of strings?
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How can I respond to the width of an auto-sized DOM element in React?
...ct components, and am trying to convert the page from a static layout to a more responsive, resizable layout. However, I keep running into limitations with React, and am wondering if there's a standard pattern for handling these issues. In my specific case, I have a component that renders as a div w...
What is the difference between a field and a property?
...ly-upvoted incorrect comments. A property should always encapsulate one or more fields, and should never do any heavy lifting or validation. If you need a property such a UserName or Password to have validation, change their type from strings to Value Objects. There is an unspoken contract between ...
How does password salt help against a rainbow table attack?
...attempting to crack the password.
A public salt does two things: makes it more time-consuming to crack a large list of passwords, and makes it infeasible to use a rainbow table.
To understand the first one, imagine a single password file that contains hundreds of usernames and passwords. Without a...
XSLT equivalent for JSON [closed]
... thank you, that's what I was looking for. It's a pity the technique isn't more popular, JSON is quite often used as a return format in REST-style services and it would be nice to have a standard way of implementing transformations to it.
– luvieere
Oct 24 '09 ...
Get first n characters of a string
...n a while since I wrote this answer and I don't actually use this code any more. I prefer this function which prevents breaking the string in the middle of a word using the wordwrap function:
function truncate($string,$length=100,$append="…") {
$string = trim($string);
if(strlen($st...
What is the id( ) function used for?
...." (Python Standard Library - Built-in Functions) A unique number. Nothing more, and nothing less. Think of it as a social-security number or employee id number for Python objects.
Is it the same with memory addresses in C?
Conceptually, yes, in that they are both guaranteed to be unique in t...