大约有 10,000 项符合查询结果（耗时：0.0271秒） [XML]
How to format numbers as currency string?
...7).toFixed(2).replace(/\d(?=(\d{3})+\.)/g, '$&,'); // 12,345.67
The idea behind this solution is replacing matched sections with first match and comma, i.e. '$&,'. The matching is done using lookahead approach. You may read the expression as "match a number if it is followed by a sequence...
When should you NOT use a Rules Engine? [closed]
...e 2 examples from personal experience where using a Rules Engine was a bad idea, maybe that will help:-
On a past project, I noticed that the rules files (the project used Drools) contained a lot of java code, including loops, functions etc. They were essentially java files masquerading as rules f...
What's the best way to refactor a method that has too many (6+) parameters?
...
Good idea but bad example; the constructor for the Rectangle would have to have 4 arguments. This would make more sense if the method was expecting 2 sets of rectangle coordinates/dimensions. Then you could pass 2 rectangles ins...
What is the “Execute Around” idiom?
...e Java as an example even though the pattern isn't platform-specific.
The idea is that sometimes you have code that always involves the same boilerplate before you run the code and after you run the code. A good example is JDBC. You always grab a connection and create a statement (or prepared sta...
jQuery using append with effects
... @Vic as it happens .append() doesn't even take a selector string. The idea's still correct though. Thanks, updated.
– Matt Ball
Jan 8 '13 at 0:39
...
Limitations of SQL Server Express
...ose limitations - I'm only worried about the actual no. of databases - any idea about this?
– Donniel
Jul 23 '09 at 4:48
4
...
How update the _id of one MongoDB Document?
...ed field. You could fix this by doing the delete first, but that is a bad idea because if your insert fails for some reason your data is now lost. You must instead drop your index, perform the work, then restore the index.
– skelly
Jun 2 '14 at 19:52
...
What is the JavaScript convention for no operation?
...ssarily a function you need to give, and giving it the noop name is a good idea so you're telling your readers (and that may be you in 6 months) that you purposely give an empty function.
In the end, there's no such thing as "inferior" or "superior" code structure. You're either right or wrong in t...
How to extract the decision rules from scikit-learn decision-tree?
...sing tree_.threshold == -2 to decide whether a node is a leaf isn't a good idea. What if it's a real decision node with a threshold of -2? Instead, you should look at tree.feature or tree.children_*.
The line features = [feature_names[i] for i in tree_.feature] crashes with my version of sklearn, be...
Can't find @Nullable inside javax.annotation.*
...If anyone has this issue when building a Maven project created in IntelliJ IDEA externally, I used the following dependency instead of the answer:
<dependency>
<groupId>org.jetbrains</groupId>
<artifactId>annotations</artifactId>
<version>15.0</version&g...