大约有 15,461 项符合查询结果（耗时：0.0238秒） [XML]
Do rails rake tasks provide access to ActiveRecord models?
...
Figured it out, the task should look like:
namespace :test do
task :new_task => :environment do
puts Parent.all.inspect
end
end
Notice the => :environment dependency added to the task
sh...
How to add a local repo and treat it as a remote repo
...t has a local remote. You can run the entire script and it will create the test repos in your home folder (tested on windows git bash). The explanations are inside the script for easier saving to your personal notes, its very readable from, e.g. Visual Studio Code.
I would also like to thank Jack f...
How can I create an Asynchronous function in Javascript?
... your_function();
if (callback) {callback();}
}, 0);
}
TEST 1 (may output '1 x 2 3' or '1 2 x 3' or '1 2 3 x'):
console.log(1);
async(function() {console.log('x')}, null);
console.log(2);
console.log(3);
TEST 2 (will always output 'x 1'):
async(function() {console.log('x');},...
Abort makefile if variable not set
...abs must precede these lines.
Generic solution
In case you're going to test many variables, it's worth defining an auxiliary function for that:
# Check that given variables are set and all have non-empty values,
# die with an error otherwise.
#
# Params:
# 1. Variable name(s) to test.
# 2. ...
MySQL LIKE IN()?
... OR field LIKE '%1938 '
OR field LIKE '%1940 % test';
Use:
SELECT * FROM fiberbox WHERE field REGEXP '^1740 |1938 $|1940 (.*) test';
Placing ^ in front of the value indicates start of the line.
Placing $ after the value indicates end of line.
Placing (.*) behaves ...
Getting the first and last day of a month, using a given DateTime object
...ile remembering that clarity is important too.
Result
Here is an example test run result for 10 million iterations:
2257 ms for FirstDayOfMonth_AddMethod()
2406 ms for FirstDayOfMonth_NewMethod()
6342 ms for LastDayOfMonth_AddMethod()
4037 ms for LastDayOfMonth_AddMethodWithDaysInMonth()
4160 ms ...
git add remote branch
...ges
github/master
github/next
github/pu
Create a new local branch (test) from a github's remote branch (pu):
git branch test github/pu
git checkout test
Merge changes from github's remote branch (pu) with local branch (test):
git fetch github
git checkout test
git merge github/pu
Updat...
How do I limit the number of rows returned by an Oracle query after ordering?
... page, in the hope of preventing link rot.
Setup
CREATE TABLE rownum_order_test (
val NUMBER
);
INSERT ALL
INTO rownum_order_test
SELECT level
FROM dual
CONNECT BY level <= 10;
COMMIT;
What's in the table?
SELECT val
FROM rownum_order_test
ORDER BY val;
VAL
----------
...
How to add a line break in an Android TextView?
...
ok figured it out:
<string name="sample_string"><![CDATA[some test line 1 <br />some test line 2]]></string>
so wrap in CDATA is necessary and breaks added inside as html tags
share
|
...
Difference between fmt.Println() and println() in Go
...s an example.
println() prints a pointer point to the address of function test.
fmt.Println() prints the address of function.
share
|
improve this answer
|
follow
...