小编JZ.*_*JZ.的帖子

我有以下难看的硬代码:

<div class="label">
    <p id="CO-0"></p>
    <p id="CO-1"></p>
    <p id="CO-2"></p>
    <p id="CO-3"></p>
</div>

如何在JavaScript中使用迭代自动插入0,1,2和3 pid？

这是我的开始:

for (i = 0; i< 3; i +=1){
    $('.label').html('<p id='+[i]+'></p>');
} 

如何将目标_blank传递给js 链接方法？

x = "my link to google"
x.link("www.google.com")

<a href="www.google.com">my link to google</a>

如果它不可能有替代方法我可以使用？

我在使用新的OSX Mountain Lion Install编译Phusion Passenger时遇到了麻烦.你有什么建议吗？

Installing Phusion Passenger Standalone...
[*******************************              ] Compiling Phusion Passenger... 
*** ERROR: the following command failed:
mkdir -p 'ext/ruby/ruby-1.9.3-x86_64-macosx/'
cd 'ext/ruby/ruby-1.9.3-x86_64-macosx/' && /Users/boris/.rvm/wrappers/ruby-1.9.3-p194@apps2/ruby '/Users/boris/.passenger/standalone/3.0.13-x86_64-ruby1.9.3-macosx-10.8/support/ext/ruby/extconf.rb'
checking for alloca.h... *** /Users/boris/.passenger/standalone/3.0.13-x86_64-ruby1.9.3-macosx-10.8/support/ext/ruby/extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers.  Check the mkmf.log file for more
details.  You may need configuration options.

Provided configuration options:
    --with-opt-dir
    --with-opt-include
    --without-opt-include=${opt-dir}/include
    --with-opt-lib
    --without-opt-lib=${opt-dir}/lib
    --with-make-prog
    --without-make-prog
    --srcdir=/Users/boris/.passenger/standalone/3.0.13-x86_64-ruby1.9.3-macosx-10.8/support/ext/ruby
    --curdir
    --ruby=/Users/boris/.rvm/rubies/ruby-1.9.3-p194/bin/ruby
/Users/boris/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/1.9.1/mkmf.rb:381:in `try_do': The compiler failed …

我正在尝试使用is.gd中的超级简单API:

http://is.gd/api.php?longurl=http://www.example.com

它返回一个响应头"HTTP/1.1 200 OK",如果URL被缩短如预期,或"HTTP/1.1 500内部服务器错误",如果有,阻止此任何问题.假设请求成功,响应正文将仅包含新的缩短URL

我甚至不知道从哪里开始,或者如果有任何可用的Ruby方法,使发送和接收摩擦这些API请求.我基本上想要将响应(缩短的url)分配给ruby对象.

你会怎么做？提前致谢.

在我的Rails 3 app控制器上,我有以下代码:

array = []
Location.all.each{|x|array<<x.city.html_safe}
@data_dump = array

在Rails控制台中,它看起来很干净:

["Littelside", "Tessmouth"]

在我看来,@ data_dump对象被编码:

["Littelside", "Tessmouth"]

你怎么清理这个烂摊子？我希望我的对象在视图中,以对象在终端中返回.提前致谢!

我有两个提交:

[branch]: [commit_id]
justin: 94943b74ba273a9f4009
jzbranch: 6070aada7b8a690d410b

如何将两个分支合并到jzbranch中,并解决两者之间的任何差异？

这是我的代码:

      $('#link').attr("href",link) 
      $('#link').text(text)

如何使用jQuery更改链接的标题？我正在更改网址,但我无法编辑文本,我做错了什么？

<a id="link" href="" target="_blank">text</a>



 $('#link').attr("href",data[1].url) 
 $('#link').attr("title",data[1].title) 

<a href="http://link.com">title</a>

我想简单地改变两件事:

1. 网址
2. 标题(如上所示)

我可以更改链接,但标题不会改变.我选错了.因此,有没有办法列出所有可用的attr？或者你能帮助我改变上面的文字标题吗？

答案都是可以接受的.

        <div id="highlight" class="topicHighlight hero1">
            <h3 id="h3">hero_1_large_text</h3>
            <p id="p"></p>
                <span id="coverTextSpan">hero_1_small_text</span>
                <a id="link" href="url" target="_blank">text</a>
        </div>

我已成功部署了Ruby on Rails应用程序,并按照资产管道指南设置资产编译和压缩.看来我的服务器日志中出现了缓存问题.

在尝试mkdir缓存文件夹时,似乎我有一个Permission被拒绝了？这里发生了什么？我怎么解决这个问题？

nginx/logs error.log ...

cache: [GET /assets/grid.png] miss
cache: [GET /] miss
cache error: Permission denied - /var/www/redmeetsblue/releases/20120212234112/tmp/cache/B27
/usr/local/rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/fileutils.rb:247:in `mkdir'
/usr/local/rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/fileutils.rb:247:in `fu_mkdir'
/usr/local/rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/fileutils.rb:221:in `block (2 levels) in mkdir_p'
/usr/local/rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/fileutils.rb:219:in `reverse_each'
/usr/local/rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/fileutils.rb:219:in `block in mkdir_p'
/usr/local/rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/fileutils.rb:205:in `each'
/usr/local/rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/fileutils.rb:205:in `mkdir_p'

tmp文件夹用户/权限......

ls -alh /var/www/redmeetsblue/current/tmp
total 12K
drwxr-xr-x  3 root root 4.0K 2012-02-12 18:43 .
drwxrwxr-x 13 root root 4.0K 2012-02-12 18:41 ..
drwxr-xr-x  3 root root 4.0K 2012-02-12 18:43 cache
lrwxrwxrwx  1 root root   33 2012-02-12 18:41 pids -> …

自制语0.9.3 OSX 10.8.2

我想知道你是否见过这样的东西？

==> make install
brew: superenv removed: -O3 -gdwarf-2 -arch x86_64 -Wall -Wendif-labels -W -Wno-unused-parameter
20 errors generated.
make[1]: *** [/private/tmp/node-tiuh/node-v0.8.12/out/Release/obj.target/uv/deps/uv/src/unix/darwin.o] Error 1
make[1]: *** Waiting for unfinished jobs....
make: *** [node] Error 2

Error: node did not build
Logs: /Users/justin/Library/Logs/Homebrew/node/
Help: https://github.com/mxcl/homebrew/wiki/troubleshooting
      https://github.com/mxcl/homebrew/issues/13282

假设我执行以下查询:

results = db.engine.execute(sql_query)

它按预期返回行:

>>> for record in results:
...     print(record['path'])
... 
Top.Collections.Pictures.Astronomy.Stars
Top.Collections.Pictures.Astronomy.Galaxies
Top.Collections.Pictures.Astronomy.Astronauts

当我尝试第二次或第三次迭代它时,对象为空:

>>> for record in results:
...     print(record['path'])
...
>>> 

如何保存和重用ResultProxy以多次迭代它？