大约有 40,000 项符合查询结果（耗时：0.0440秒） [XML]
mongoose vs mongodb (nodejs modules/extensions), which better? and why?
.... instead of doing something like mongooseInstace.model('MyCollection', { "_id": Number, "xyz": String }) it's better to do (even though the collection name is really MyCollection): mongooseInstace.model('mycollection', { "_id": Number, "xyz": String })
But honestly, it's really useful. The bigges...
Parsing a string into a boolean value in PHP
...
There is a native PHP method of doing this which uses PHP's filter_var method:
$bool = filter_var($value, FILTER_VALIDATE_BOOLEAN);
According to PHP's manual:
Returns TRUE for "1", "true", "on" and "yes". Returns FALSE otherwise.
If FILTER_NULL_ON_FAILURE is set, FALSE is return...
Define variable to use with IN operator (T-SQL)
...T @sql = 'SELECT * FROM myTable WHERE myColumn in (' + @list + ')'
exec sp_executeSQL @sql
3) A possible third option is table variables. If you have SQl Server 2005 you can use a table variable. If your on Sql Server 2008 you can even pass whole table variables in as a parameter to stored proced...
Javascript fuzzy search that makes sense
... asked for though. Also, this can be expensive if the list is massive.
get_bigrams = (string) ->
s = string.toLowerCase()
v = new Array(s.length - 1)
for i in [0..v.length] by 1
v[i] = s.slice(i, i + 2)
return v
string_similarity = (str1, str2) ->
if str1.length &...
How does Rails keep track of which migrations have run for a database?
...
Rails creates a table in your database called schema_migrations to keep track of which migrations have run.
The table contains a single column, version. When Rails runs a migration, it takes the leading digits in the migration's file name and inserts a row for that "version",...
Effects of changing Django's SECRET_KEY
I made a mistake and committed my Django project's SECRET_KEY into a public repository.
5 Answers
...
How to use/install gcc on Mac OS X 10.8 / Xcode 4.4
... Apple LLVM version 6.0 (clang-600.0.51) (based on LLVM 3.5svn) Target: x86_64-apple-darwin14.0.0 Thread model: posix So am I using gcc?
– Thomas
Dec 14 '14 at 16:11
...
Fastest way to check if a string matches a regexp in ruby?
...y
require 'benchmark'
str = "aacaabc"
re = Regexp.new('a+b').freeze
N = 4_000_000
Benchmark.bm do |b|
b.report("str.match re\t") { N.times { str.match re } }
b.report("str =~ re\t") { N.times { str =~ re } }
b.report("str[re] \t") { N.times { str[re] } }
b.report("re =~ str...
Why does installing Nokogiri on Mac OS fail with libiconv is missing?
...official solution from the Nokogiri docs (nokogiri.org/tutorials/installing_nokogiri.html#mac_os_x), and the only one that worked on El Capitan. The accepted solution did not work there.
– Johannes
Oct 17 '15 at 20:11
...
What's the difference between ViewData and ViewBag?
...ed, here is the source:
http://www.asp.net/whitepapers/mvc3-release-notes#_Toc2_4
MVC 2 controllers support a ViewData
property that enables you to pass data
to a view template using a late-bound
dictionary API. In MVC 3, you can also
use somewhat simpler syntax with the
ViewBag prope...