Why is “L” used as a suffix? I’ve never seen it written down, but I theorise in short for two reasons: Because R handles complex numbers which may be specified using the suffix “i” and this would be too simillar to “I” Because R’s integers are 32-bit long integers and “L” therefore appears to be … Read more
Simple. When I use it, it’s a modern dynamic language, when you use it, it’s merely a scripting language!
GET is designed for getting data from the server. POST (and lesser-known friends PUT and DELETE) are designed for modifying data on the server. A GET request should never cause data to be removed from an application. If you have a link you can click on with a GET to remove data, then Google spidering … Read more
Length() tends to refer to contiguous elements – a string has a length for example. Count() tends to refer to the number of elements in a looser collection. Size() tends to refer to the size of the collection, often this can be different from the length in cases like vectors (or strings), there may be … Read more
From the W3’s HTML4 specification: The label itself may be positioned before, after or around the associated control. <label for=”lastname”>Last Name</label> <input type=”text” id=”lastname” /> or <input type=”text” id=”lastname” /> <label for=”lastname”>Last Name</label> or <label> <input type=”text” name=”lastname” /> Last Name </label> Note that the third technique cannot be used when a table is being … Read more
is will return True if two variables point to the same object (in memory), == if the objects referred to by the variables are equal. >>> a = [1, 2, 3] >>> b = a >>> b is a True >>> b == a True # Make a new copy of list `a` via the … Read more
Incrementing / Decrementing Operators ++ increment operator — decrement operator Example Name Effect ——————————————————————— ++$a Pre-increment Increments $a by one, then returns $a. $a++ Post-increment Returns $a, then increments $a by one. –$a Pre-decrement Decrements $a by one, then returns $a. $a– Post-decrement Returns $a, then decrements $a by one. These can go before or … Read more
Nothing in the C lexical analysis or grammar distinguishes int from void. The both appear exactly once in the C grammar, as a type-specifier in C 6.7.2 1. Therefore, the only way to distinguish these two samples of code: void *x[] = { (char *) 0 }; and int *x[] = { (char *) 0 … Read more