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How to split one string into multiple strings separated by at least one space in bash shell?
...
I like the conversion to an array, to be able to access individual elements:
sentence="this is a story"
stringarray=($sentence)
now you can access individual elements directly (it starts with 0):
echo ${stringarray[0]}
or convert back to string in...
Programmatically Request Access to Contacts
...nged)
{
{
self.isContactsChanged=NO;
CFArrayRef allPeople = ABAddressBookCopyArrayOfAllPeople(addressBook);
ABAddressBookRegisterExternalChangeCallback(addressBook, addressBookChanged, self);
int allPeopleCount = CFArrayGetCount(allPeople...
Java 8 forEach with index [duplicate]
...
It works with params if you capture an array with one element, that holds the current index.
int[] idx = { 0 };
params.forEach(e -> query.bind(idx[0]++, e));
The above code assumes, that the method forEach iterates through the elements in encounter order. Th...
Why isn't sizeof for a struct equal to the sum of sizeof of each member?
... I do not quite get it: why is there no memory slot for the pointer in the arrays?
– Balázs Börcsök
Dec 7 '19 at 23:25
1
...
Try-finally block prevents StackOverflowError
....consumeAlmostAllStack(Main.java:21)
...
The code:
import java.util.Arrays;
import java.util.Collections;
public class Main {
static int[] orderOfOperations = new int[2048];
static int operationsCount = 0;
static StackOverflowError fooKiller;
static Error wontReachHere = new Error("Wo...
How to convert a string or integer to binary in Ruby?
...d the tests:
class Binary
def self.binary_to_decimal(binary)
binary_array = binary.to_s.chars.map(&:to_i)
total = 0
binary_array.each_with_index do |n, i|
total += 2 ** (binary_array.length-i-1) * n
end
total
end
end
class BinaryTest < Test::Unit::TestCase
...
How to find the width of a div using vanilla JavaScript?
... example:
document.getElementsByClassName("myDiv")
This will return an array. If there is one particular property you are interested in. For example:
var divWidth = document.getElementsByClassName("myDiv")[0].clientWidth;
divWidth will now be equal to the the width of the first element in y...
How to alias a table in Laravel Eloquent queries (or using Query Builder)?
...ble('really_long_table_name AS t')->select('t.id AS uid')->get();
// array(
// 0 => object(stdClass)(
// 'uid' => '1'
// )
// )
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How to set selected value on select using selectpicker plugin from bootstrap
...ker('refresh')
Edit 2:
To select multiple values, pass the values as an array.
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What does the restrict keyword mean in C++?
... was even clearer than the wiki article: 4 instructions vs 3 instructions.
Arrays
So far we have single instruction savings, but if pointer represent arrays to be looped over, a common use case, then a bunch of instructions could be saved, as mentioned by supercat and michael.
Consider for example:
...