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MongoDB drop every database
...
Save this to drop_all_dbs.js:
var databases = db.getMongo().getDBNames()
for(var i in databases){
db = db.getMongo().getDB( databases[i] );
if(db.getName() == "admin" || db.getName() == "local"){
print("skipping db " + db.get...
boost多索引容器multi_index_container实战 - C/C++ - 清泛网 - 专注C/C++及内核技术
boost多索引容器multi_index_container实战boost多索引容器multi_index_container用法详解、性能测试等。目录：
boost多索引容器multi_index_container详解
boost多索引容器multi_index_container架构图
boost多索引容器multi_index_container性能测试
原文地...
Do DOM tree elements with ids become global variables?
... crazy as it seems this behavior is now technically safe to use in the latest version of all major browsers in standards mode. But while named access can seem somewhat convenient , it should not be used.
Why? A lot of the reasoning can be summed up in this article about why global variables are b...
Insert picture into Excel cell [closed]
...ble click on the button in order to get to the VBA Code -->
Sub Button1_Click()
Dim filePathCell As Range
Dim imageLocationCell As Range
Dim filePath As String
Set filePathCell = Application.InputBox(Prompt:= _
"Please select the cell that contains the reference path to ...
How do I add a tool tip to a span element?
...
Yes I just tested it and also wasn't surprised it didn't work .Good old IE! ;)
– SearchForKnowledge
Mar 12 '15 at 14:14
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What is the maximum float in Python?
...
For float have a look at sys.float_info:
>>> import sys
>>> sys.float_info
sys.floatinfo(max=1.7976931348623157e+308, max_exp=1024, max_10_exp=308, min=2.2
250738585072014e-308, min_exp=-1021, min_10_exp=-307, dig=15, mant_dig=53, epsil
on=...
Swap key with value JSON
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you can use lodash function _.invert it also can use multivlaue
var object = { 'a': 1, 'b': 2, 'c': 1 };
_.invert(object);
// => { '1': 'c', '2': 'b' }
// with `multiValue`
_.invert(object, true);
// => { '1': ['a', 'c'], '2': ['b'] ...
Java Keytool error after importing certificate , “keytool error: java.io.FileNotFoundException & Acc
... users, a simple sudo will fix this issue.
– truthful_ness
May 26 '14 at 17:14
15
running as admi...
Git error on commit after merge - fatal: cannot do a partial commit during a merge
...ost cases but in case it doesn't work
You need to do git commit -m "your_merge_message". During a merge conflict you cannot merge one single file so you need to
Stage only the conflicted file ( git add your_file.txt )
git commit -m "your_merge_message"
...
Will strlen be calculated multiple times if used in a loop condition?
...mstances include compiling with GCC under linux, where strlen is marked as __attribute__((pure)) allowing the compiler to elide multiple calls. GCC Attributes
– David Rodríguez - dribeas
Jul 6 '12 at 15:42
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