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How to get first 5 characters from string [duplicate]
...ing;
For anyone using that. Bear in mind curly brace syntax for accessing array elements and string offsets is deprecated from PHP 7.4
More information:
https://wiki.php.net/rfc/deprecate_curly_braces_array_access
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What are the options for storing hierarchical data in a relational database? [closed]
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If your database supports arrays, you can also implement a lineage column or materialized path as an array of parent ids.
Specifically with Postgres you can then use the set operators to query the hierarchy, and get excellent performance with GIN ind...
Fast way of finding lines in one file that are not in another?
... stores the entire contents of file1 line by line in a line-number indexed array ll1[], and the entire contents of file2 line by line in a line-content indexed associative array ss2[]. After both files are read, iterate over ll1 and use the in operator to determine if the line in file1 is present in...
Why is Java's Iterator not an Iterable?
...eness of iterators and index variables when iterating over collections and arrays" [1].
Collection<Item> items...
for (Iterator<Item> iter = items.iterator(); iter.hasNext(); ) {
Item item = iter.next();
...
}
for (Item item : items) {
...
}
Why then does this same argum...
Should I learn C before learning C++? [closed]
...into C++.
I think C++ makes it easy to wrap up all those gotchas (need an array that won't overflow when you use the [] operator and a dodgy index? Sure, make an array class that does bounds checking) but you need to know what they are and get bitten by them before you understand why things are do...
Laravel Pagination links not including other GET parameters
...rk. Thanks to both for their clarifications.
->appends() can accept an array as a parameter, you could pass Input::except('page'), that should do the trick.
Example:
return view('manage/users', [
'users' => $users->appends(Input::except('page'))
]);
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Can You Get A Users Local LAN IP Address Via JavaScript?
...eaned up the function that they found. This will either return false or an array. When testing remember that you need to collapse the array in the web developer console otherwise it's nonintuitive default behavior may deceive you in to thinking that it is returning an empty array.
function ip_local...
Understanding the map function
...hat you asked for in the comments on the question - "turn a string into an array", by 'array' you probably want either a tuple or a list (both of them behave a little like arrays from other languages) -
>>> a = "hello, world"
>>> list(a)
['h', 'e', 'l', 'l', 'o', ',', ' ', 'w', ...
Get all object attributes in Python? [duplicate]
...if this is what you're looking for, but... attrs = dir(obj) will store the array of attributes as strings in attrs. Then to access them, you can always use getattr(obj, attrs[i]) to get the ith attribute in the attrs array.
– Nick Merrill
Jun 27 '14 at 1:57
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Why is Scala's immutable Set not covariant in its type?
...ntations. Common sets are implemented as hashtables, which are non-variant arrays of the key type. I agree it's a slightly annoying irregularity."
So, it seems that all of our efforts to construct a principled reason for this were misguided :-)
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