大约有 41,000 项符合查询结果（耗时：0.0290秒） [XML]
ElasticSearch, Sphinx, Lucene, Solr, Xapian. Which fits for which usage? [closed]
...code support for sql_field_string, you need to patch the source
# this param. is not supported natively
sql_query_info = SELECT * FROM my_posts WHERE id = $id
}
index posts
{
source = post_source
# source above
path = /var/data/posts
# index location
charset_type = u...
Is there an equivalent for var_dump (PHP) in Javascript?
...var_dump'ish behavior. It only dumps one variable per call. The
* first parameter is the variable, and the second parameter is an optional
* name. This can be the variable name [makes it easier to distinguish between
* numerious calls to this function], but any string value can be passed.
*
...
Copy multiple files in Python
..."""
Recursive copies files from source to destination directory.
:param source_path: source directory
:param destination_path: destination directory
:param override if True all files will be overridden otherwise skip if file exist
:return: count of copied files
"""
files...
C# Ignore certificate errors?
...g the method,
/// this behaviour is prevented
/// </summary>
/// <param name="sender"></param>
/// <param name="certification"></param>
/// <param name="chain"></param>
/// <param name="sslPolicyErrors"></param>
/// <returns>true</return...
warning this call is not awaited, execution of the current method continues
...rt the task if it is not already running.
/// </summary>
/// <param name="task">The task to run.</param>
/// <remarks>This is usually used to avoid warning messages about not waiting for the task to complete.</remarks>
public static void RunConcurrently(this Tas...
How to filter array in subdocument with MongoDB [duplicate]
...bject in the array, my solution was: ShoppingCartModel.findOne({"_id": ctx.params.idCart, "active" : true, products: {$elemMatch : {"products.active" : true}}}) (I was filtering only the active: true carts and products)
– Ulises Layera
Mar 8 '18 at 14:23
...
Create module variables in Ruby
...ariable within the module body.
module SomeModule
module_function
def param; @param end
def param= v; @param = v end
end
SomeModule.param
# => nil
SomeModule.param = 1
SomeModule.param
# => 1
The instance variable @param will then belong to the module SomeModule, which is an instance...
Eclipse hangs on loading workbench
...
# usage: ceclipse
#
#
# error
#
# show an error message and exit
#
# params:
# 1: l_msg - the message to display
error() {
local l_msg="$1"
echo "error: $l_msg" 1>&2
exit 1
}
#
# autoinstall
#
# check that l_prog is available by calling which
# if not available install fro...
What does the “map” method do in Ruby?
... of tuples with special instructions for the interpreter). The first "pipe parameter" is the key, the second is the value.
{:make => "audi", :color => "black", :year => 2008}.each do |k,v|
puts "#{k} is #{v}"
end
#make is audi
#color is black
#year is 2008
To answer the actual questi...
Set type for function parameters?
Is there a way to let a javascript function know that a certain parameter is of a certain type?
12 Answers
...