大约有 3,300 项符合查询结果（耗时：0.0213秒） [XML]
Rest with Express.js nested router
...s route
This will result in following possible routes:
GET /user -> hello user
GET /user/5 -> hello user 5
GET /user/5/items -> hello items from user 5
GET /user/5/items/6 -> hello item 6 from user 5
var express = require('express');
var app = express();
var userRouter = express....
Shell Script: Execute a python program from within a shell script
... by running python --version, and you can enforce the version with python3 hello.py.
– Jean-Bernard Jansen
Dec 16 '16 at 10:58
...
ruby inheritance vs mixins
...re that nobody has mentioned: namespace collisions. Consider:
module A
HELLO = "hi"
def sayhi
puts HELLO
end
end
module B
HELLO = "you stink"
def sayhi
puts HELLO
end
end
class C
include A
include B
end
c = C.new
c.sayhi
Which one wins? In Ruby, it turns out the be th...
How to make a chain of function decorators?
...gs, **kwargs) + "</i>"
return wrapped
@makebold
@makeitalic
def hello():
return "hello world"
@makebold
@makeitalic
def log(s):
return s
print hello() # returns "<b><i>hello world</i></b>"
print hello.__name__ # with functools.wraps() this returns ...
When should I use malloc in C and when don't I?
...
char *some_memory = "Hello World";
is creating a pointer to a string constant. That means the string "Hello World" will be somewhere in the read-only part of the memory and you just have a pointer to it. You can use the string as read-only. You...
awk without printing newline
...ty ORS or using printf.
Using an empty ORS
awk -v ORS= '1' <<< "hello
man"
This returns "helloman", all together.
The problem here is that not all awks accept setting an empty ORS, so you probably have to set another record separator.
awk -v ORS="-" '{print ...}' file
For example:
...
MySQL stored procedure vs function, which would I use when?
...an only be invoked with the CALL statement:
UDF Example:
CREATE FUNCTION hello (s CHAR(20))
RETURNS CHAR(50) DETERMINISTIC
RETURN CONCAT('Hello, ',s,'!');
Query OK, 0 rows affected (0.00 sec)
CREATE TABLE names (id int, name varchar(20));
INSERT INTO names VALUES (1, 'Bob');
INSERT INTO nam...
Is JavaScript a pass-by-reference or pass-by-value language?
...
OK, now let's look at primitives like strings for example
var string1 = 'Hello world';
var string2 = 'Goodbye world';
Again, we pick a favorite.
var favoriteString = string1;
Both our favoriteString and string1 variables are assigned to 'Hello world'. Now, what if we want to change our favori...
How to print without newline or space?
...print 'done'
#..........done
More examples showing printf style
printf('hello %s', 'world')
printf('%i %f', 10, 3.14)
#hello world10 3.140000
share
|
improve this answer
|
...
Remove substring from the string
...turn the sliced string and not affect the original? For example if I have "hello world", I want to slice "hello " and return just the "world" part, without modifying the original string object?
– jhabbott
Oct 28 '11 at 15:50
...