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Looping over arrays, printing both index and value
... work same:
declare -A bar=([foo]=snoopy [bar]=nice [baz]=cool [foo bar]='Hello world!')
paste -d = <(printf "bar[%s]\n" "${!bar[@]}") <(printf '"%s"\n' "${bar[@]}")
bar[foo bar]="Hello world!"
bar[foo]="snoopy"
bar[bar]="nice"
bar[baz]="cool"
Issue with newlines or special chars
Unfortune...
How to compare two strings in dot separated version format in Bash?
...o "$1" | tr '.' ' '); }
$ [ $(ver 10.9) -lt $(ver 10.10) ] && echo hello
hello
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What is the difference between . (dot) and $ (dollar sign)?
...to a prefix function, one can write ($ 3) (4+) analogous to (++", world") "hello".
Why would anyone do this? For lists of functions, for example. Both:
map (++", world") ["hello","goodbye"]`
and:
map ($ 3) [(4+),(3*)]
are shorter than map (\x -> x ++ ", world") ... or map (\f -> f 3) .....
Are arrays in PHP copied as value or as reference to new variables, and when passed to functions?
...ass();
$obj->field='world';
$original=array($obj);
function example($hello) {
$hello[0]->field='mundo'; // change will be applied in $original
$hello[1]=new stdClass(); // change will not be applied in $original
$
}
example($original);
var_dump($original);
// array(1) { [0]=&g...
Can code that is valid in both C and C++ produce different behavior when compiled in each language?
...truct f { int x; };
int main() {
f();
}
int f() {
return printf("hello");
}
In C++ this will print nothing because a temporary f is created and destroyed, but in C90 it will print hello because functions can be called without having been declared.
In case you were wondering about the na...
How can I use jQuery in Greasemonkey?
.... Make sure you have the require tag in the Greasemonkey header. Here is a Hello World example:
// ==UserScript==
// @name Test jQuery
// @namespace http://www.example.com/jQueryPlay/
// @description Just a test
// @include http://*
// @require http://ajax.googleapis....
How do you get the “object reference” of an object in java when toString() and hashCode() have been
...not a gurantee, but the default implementation from Sun. Things like s = "Hello" and t = "Hello" would probably result in s and t having the same identityHashCode as they really are the same object.
– TofuBeer
Feb 24 '09 at 15:23
...
What is the Swift equivalent of isEqualToString in Objective-C?
...he equality with isEqualToString
You can now use ==
Example:
let x = "hello"
let y = "hello"
let isEqual = (x == y)
now isEqual is true.
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How to pre-populate the sms body text via an html link
...
We found a proposed method and tested:
<a href="sms:12345678?body=Hello my friend">Send SMS</a>
Here are the results:
iPhone4 - fault (empty body of message);
Nokia N8 - ok (body of message - "Hello my friend", To
"12345678");
HTC Mozart - fault (message "unsupported pag...
AngularJS access parent scope from child controller
...Component)
...
controllerAs: 'vm',
...
var vm = this;
vm.parentProperty = 'hello from parent';
Child:
require: {
myParentCtrl: '^myParent'
},
controllerAs: 'vm',
...
var vm = this;
vm.myParentCtrl.parentProperty = 'hello from child';
...