大约有 43,000 项符合查询结果（耗时：0.0484秒） [XML]
Rounding float in Ruby
...
Keep in mind that 2.3000.round(2) => 2.3 and sprintf '%.2f', 2.300 => 2.30. In my opinion this is a flaw in round(), or it should have an option to preserve trailing zeros.
– Excalibur
Feb 11 '14 at 17:06
...
See changes to a specific file using git
I know that I can use the git diff command to check the changes, but, as far as I understood, it is directory based. This means it gives all the changes of all files on the current directory.
...
git: fatal unable to auto-detect email address
...in your home directory not in local directory. while setting your username and e-mail ID.
git config --global user.email "you@domain.com"
git config --global user.name "github_username"
Then follow the procedure on GitHub.
...
Pass a PHP string to a JavaScript variable (and escape newlines) [duplicate]
...
Expanding on someone else's answer:
<script>
var myvar = <?php echo json_encode($myVarValue); ?>;
</script>
Using json_encode() requires:
PHP 5.2.0 or greater
$myVarValue encoded as UTF-8 (or US-ASCII, o...
How to concatenate properties from multiple JavaScript objects
... many modern browsers but not yet all of them. Use a transpiler like Babel and Traceur to generate backwards-compatible ES5 JavaScript.
share
|
improve this answer
|
follow
...
How to sum up an array of integers in C#
...
Provided that you can use .NET 3.5 (or newer) and LINQ, try
int sum = arr.Sum();
share
|
improve this answer
|
follow
|
...
PHP shell_exec() vs exec()
I'm struggling to understand the difference between shell_exec() and exec() ...
4 Answers
...
Is Java RegEx case-insensitive?
...
You can also match case insensitive regexs and make it more readable by using the Pattern.CASE_INSENSITIVE constant like:
Pattern mypattern = Pattern.compile(MYREGEX, Pattern.CASE_INSENSITIVE);
Matcher mymatcher= mypattern.matcher(mystring);
...
Maven project version inheritance - do I have to specify the parent version?
...Notice that there are some cases when this behaviour is actually pretty OK and gives more flexibility you may need. Sometimes you want to use some of previous parent's version to inherit, however that's not a mainstream case.
...
MySQL error 1449: The user specified as a definer does not exist
...M information_schema.views
WHERE table_schema='your-database-name';
Copy and run the ALTER statements
How to change the definer for stored procedures
Example:
UPDATE `mysql`.`proc` p SET definer = 'user@%' WHERE definer='root@%'
Be careful, because this will change all the definers for all d...