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sqlite3-ruby install error on Ubuntu
I have the following error during sqlite3-ruby install:
19 Answers
19
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Convert String to double in Java
...or everything: double total = Double.parseDouble(jlbTotal.getText().replaceAll("[^0-9.]", "")); - this basically replaces all characters that aren't a number or . to nothing, leaving only the number and decimal point to be parsed.
– WhiteFang34
Apr 24 '11 at 10...
IntelliJ IDEA shows errors when using Spring's @Autowired annotation
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But what if you actually forget to annotate a bean. You won't get any warning?
– Cleankod
Nov 22 '15 at 15:56
add a comm...
What are the best practices for SQLite on Android?
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Inserts, updates, deletes and reads are generally OK from multiple threads, but Brad's answer is not correct. You have to be careful with how you create your connections and use them. There are situations where your update calls will fail, even if your database doesn'...
Altering column size in SQL Server
...right attribute.
IF COLUMNPROPERTY(OBJECT_ID('Employee', 'U'), 'Salary', 'AllowsNull')=0
ALTER TABLE [Employee]
ALTER COLUMN [Salary] NUMERIC(22,5) NOT NULL
ELSE
ALTER TABLE [Employee]
ALTER COLUMN [Salary] NUMERIC(22,5) NULL
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Good open source django project for learning [closed]
...lar projects is directly on GitHub: https://github.com/search?q=django
Finally:
Awesome Django @ https://github.com/wsvincent/awesome-django
Awesome Python @ https://github.com/vinta/awesome-python
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微博为什么限制140字(附短信70字限制考) - 闲聊区 - 清泛IT社区，为创新赋能！
...sage. We reserve 20 characters for people’s names, and the other 140 are all yours! (via Twitter FAQ)也就是说，twitter希望微博首先能做到“微”，言简意赅，其次这样的限制是考虑到短信更新状态的字数限制，本身是160字母的限制，再留20字给id长度...
How to learn R as a programming language [closed]
... the most about how to program with R had nothing to do with statistics at all.
Knowing functions like parse() and eval() is by no means a measure for being "a good R programmer". Applications that require heavy use of these functions do not make up a majority of the problem space in which you can ...
What is the best way to profile javascript execution? [closed]
...e building a lot of javascript code and you want to determine what are actually the bottlenecks in the code. At first I want to see profile stats of every javascript function and execution time. Next would be including DOM functions. This combined with actions that slows things down like operation o...
Remove scrollbar from iframe
...t work because the overflow happens in the iframe document, which you generally won't be able to modify because of cross-domain iframe security restrictions.
– thdoan
Apr 17 '15 at 11:09
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