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How do you test a public/private DSA keypair?
...ost files and I didn't know which one matched the lone id_rsa private key & I'm setting up passwordless scp so I can migrate off old websites. Making a new key pair is not an option; I've got my keys set up well and not going to mess that up.
– Chris K
Dec ...
Avoid browser popup blockers
... @t-j-crowder on this page .. have the URL you're calling via ajax be some php (or whatever) that uses sleep() for an amount of time before it returns a response. The browser will hang while it 'loads' the page.. then trigger the popup when it receives a response. In Chrome, though, you must add an ...
Read binary file as string in Ruby
...nswered Nov 7 '08 at 5:24
Curt SampsonCurt Sampson
...
How can I check a C# variable is an empty string “” or null? [duplicate]
...
Very simple and useful. I wish PHP could have something like this
– Andrew Liu
Dec 17 '15 at 5:23
6
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Illegal mix of collations MySQL Error
...your connect. You client library may support more elegant method to do it (php::mysqli does, php::mysql does not).
– Quassnoi
Jun 17 '09 at 19:04
...
'and' (boolean) vs '&' (bitwise) - Why difference in behavior with lists vs numpy arrays?
...
and tests whether both expressions are logically True while & (when used with True/False values) tests if both are True.
In Python, empty built-in objects are typically treated as logically False while non-empty built-ins are logically True. This facilitates the common use case wh...
How to display an unordered list in two columns?
... 0;
columnItems.each(function(idx, el){
if (idx !== 0 && idx > (columnItems.length / columns.length) + (column * idx)){
column += 1;
}
$(columns.get(column)).append(el);
});
}
function setupColumns(){
colu...
git undo all uncommitted or unsaved changes
...dd . (adding everything)
git stash
git stash drop
One liner: git add . && git stash && git stash drop
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How do I select a merge strategy for a git rebase?
...rbose=0
backup=1
inplace=0
ext=".bak"
message() { printf "%s\n" "$1" >&2 ; }
skip() { message "skipping ${2:-$file}${1:+: $1}"; continue ; }
argerr() { printf "%s: %s\n" "$myname" "${1:-error}" >&2 ; usage 1 ; }
invalid() { argerr "invalid option: $1" ; }
missing() { argerr "missi...
Add custom messages in assert?
...
A hack I've seen around is to use the && operator. Since a pointer "is true" if it's non-null, you can do the following without altering the condition:
assert(a == b && "A is not equal to B");
Since assert shows the condition that failed, it wil...