大约有 44,000 项符合查询结果（耗时：0.0416秒） [XML]
How can I get file extensions with JavaScript?
...not a path, for practical reasons, I think it should be return filename.substring(0,1) === '.' ? '' : filename.split('.').slice(1).pop() || ''; This takes care of .file (Unix hidden, I believe) kind of files too. That is if you want to keep it as a one-liner, which is a bit messy to my taste.
...
Remove directory which is not empty
...amed function to rimraf ;)
/**
* Remove directory recursively
* @param {string} dir_path
* @see https://stackoverflow.com/a/42505874/3027390
*/
function rimraf(dir_path) {
if (fs.existsSync(dir_path)) {
fs.readdirSync(dir_path).forEach(function(entry) {
var entry_path = ...
When should we use Observer and Observable?
... }
@Override
public void update() {
System.out.println( "Binary String: "
+ Integer.toBinaryString( subject.getState() ) );
}
}
OctalObserver.java
public class OctalObserver extends Observer{
public OctalObserver(Subject subject){
this.subject = subject;
this.sub...
Difference between __str__ and __repr__?
...oh I don't know, containing just 4 elements]
Not very. Specifically, the strings in a container would find it way too easy to disturb its string representation. In the face of ambiguity, remember, Python resists the temptation to guess. If you want the above behavior when you’re printing a list,...
SQL Server Script to create a new user
...I think that you may be a bit confused about the difference between a User and a Login. A Login is an account on the SQL Server as a whole - someone who is able to log in to the server and who has a password. A User is a Login with access to a specific database.
Creating a Login is easy and must ...
Testing modules in rspec
...dummy_class = DummyClass.new
@dummy_class.extend(Say)
end
it "get hello string" do
expect(@dummy_class.hello).to eq "hello"
end
share
|
improve this answer
|
follow
...
how to listen to N channels? (dynamic select statement)
... true if the channel has not been closed.
ch := chans[chosen]
msg := value.String()
You can experiment with a more fleshed out example here: http://play.golang.org/p/8zwvSk4kjx
share
|
improve thi...
How do I get currency exchange rates via an API such as Google Finance? [closed]
...
'public static void main(String[] args) { String currencyPair = "USDEUR"; String address = "query.yahooapis.com/v1/public/yql?q=select * from yahoo.finance.xchange where pair in (\"" + currencyPair + "\")&env=store://datatables.org/a...
Automatic HTTPS connection/redirect with node.js/express
...
Don't treat urls as strings, use the url module instead.
– arboreal84
Jul 28 '16 at 18:07
|
...
A variable modified inside a while loop is not remembered
...will not be available once the subshell exits.
Instead you can use a here string to re-write the while loop to be in the main shell process; only echo -e $lines will run in a subshell:
while read line
do
if [[ "$line" == "second line" ]]
then
foo=2
echo "Variable \$foo upda...