OStack Q&A-Knowledge Sharing Community

0 votes

428 views

1 answer

Mysql - Alter table statement to create unique index on long text field

I'm trying to create an Alter command to create an unique_index on the first 8000 characters. I'm not able to ... -alter-table-statement-to-create-unique-index-on-long-text-field...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

223 views

1 answer

Search and replace specific query string parameter value in javascript

I have a string which is something like this : a_href= "www.google.com/test_ref=abc"; I need to ... 5413899/search-and-replace-specific-query-string-parameter-value-in-javascript...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

248 views

1 answer

javascript - Module.exports and es6 Import

React with babel. I have this confusion with imports and module.exports. I assume babel when converting the ... //stackoverflow.com/questions/34278474/module-exports-and-es6-import...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

349 views

1 answer

c# - Application_Error in global.asax not catching errors in WebAPI

For a project I am working on, one of the things we're implementing is something that we have code for ... /28768715/application-error-in-global-asax-not-catching-errors-in-webapi...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

174 views

1 answer

.net - Benefit of using Unit of Work and Repository Patterns with Entity Framework

According to MSDN, DbContext is defined as: Represents a combination of the Unit-Of-Work and Repository patterns ... -unit-of-work-and-repository-patterns-with-entity-framework...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

140 views

1 answer

c++ - How do I recursively create a folder in Win32?

I'm trying to create a function that takes the name of a directory (C:fooar, or ..fooar..az, or \ ... .com/questions/1530760/how-do-i-recursively-create-a-folder-in-win32...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

242 views

1 answer

design patterns - python - should I use static methods or top-level functions

I come from a Java background and I'm new to python. I have a couple scripts that share some helper ... /18262595/python-should-i-use-static-methods-or-top-level-functions...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

202 views

1 answer

C++ name mangling decoder for g++?

(This question already has answers here): question from:https://stackoverflow.com/questions/4468770/c-name-mangling-decoder-for-g...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

338 views

1 answer

postgresql - SQL Transpose Rows as Columns

I have an interesting conundrum which I believe can be solved in purely SQL. I have tables similar to the ... ://stackoverflow.com/questions/2099198/sql-transpose-rows-as-columns...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

174 views

1 answer

Casting int to bool in C/C++

I know that in C and C++, when casting bools to ints, (int)true == 1 and (int)false == 0. I'm ... from:https://stackoverflow.com/questions/31551888/casting-int-to-bool-in-c-c...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

526 views

1 answer

naming conventions - How to name C# source files for generic classes

I am trying to stick to general naming conventions such as those described in Design Guidelines for Developing Class ... how-to-name-c-sharp-source-files-for-generic-classes...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

87 views

1 answer

android - How do I send an SMS from a shell?

I would like to be able to send an actual SMS message from a shell using just the command line and not relying on any ... .com/questions/4043490/how-do-i-send-an-sms-from-a-shell...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

247 views

1 answer

http - How does Content-Security-Policy work with X-Frame-Options?

Does Content-Security-Policy ignore X-Frame-Options, returned by a server, or is X-Frame-Options still primary? ... /how-does-content-security-policy-work-with-x-frame-options...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

147 views

1 answer

python - How would I access variables from one class to another?

I am writing a program that is utilizing multiple classes. I have one class that is dedicated to determining values ... /how-would-i-access-variables-from-one-class-to-another...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

130 views

1 answer

scala - Why do immutable objects enable functional programming?

I'm trying to learn scala and I'm unable to grasp this concept. Why does making an object ... .com/questions/12207757/why-do-immutable-objects-enable-functional-programming...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

165 views

1 answer

python - Changing logging's 'basicConfig' which is already set

I am using the logging module in python as: import logging, sys logger= logging.getLogger(__file__) ... /questions/12158048/changing-loggings-basicconfig-which-is-already-set...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

291 views

1 answer

node.js - Does a WriteStream have to be closed?

I used var writeStream = fs.createWriteStream('...') to open a WriteStream, but there is no writeStream.close ... .com/questions/9577200/does-a-writestream-have-to-be-closed...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

424 views

1 answer

postgresql - SQL Transpose Rows as Columns

I have an interesting conundrum which I believe can be solved in purely SQL. I have tables similar to the ... ://stackoverflow.com/questions/2099198/sql-transpose-rows-as-columns...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

271 views

1 answer

How does redis claim O(1) time for key lookup?

I have a question - lookup of a key value pair in an index - let's say on cassandra or postgres - is ... .com/questions/15216897/how-does-redis-claim-o1-time-for-key-lookup...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

150 views

1 answer

mysql - How can I add ON DELETE constraint on the table?

How can I add ON DELETE constraint on the table? question from:https://stackoverflow.com/questions/4688599/how-can-i-add-on-delete-constraint-on-the-table...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

148 views

1 answer

c - Why fork() before setsid()

Why fork() before setsid() to daemonize a process? Basically, if I want to detach a process from its ... from:https://stackoverflow.com/questions/2613104/why-fork-before-setsid...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

743 views

1 answer

uikit - Can font size of UILabel be changed with smooth animation on iPhone?

I want a UILabel to swell slightly when selected like in some game menu screens. To get smooth resizing I ... font-size-of-uilabel-be-changed-with-smooth-animation-on-iphone...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

228 views

1 answer

android - Why getContext() in fragment sometimes returns null?

Why getContext() sometimes returns null? I pass context to LastNewsRVAdapter.java as an argument. But ... questions/47987649/why-getcontext-in-fragment-sometimes-returns-null...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

389 views

1 answer

Javascript: Exporting large text/csv file crashes Google Chrome

I have the following Javascript code to export CSV file on the client side. However Google Chrome crashes ... /javascript-exporting-large-text-csv-file-crashes-google-chrome...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

296 views

1 answer

emacs24 - Emacs markdown-mode error on preview: "bin / bash: markdown: command not found"

I am using emacs 24 on fedora 17. I installed markdown-mode, but whenever I try to export a file by typing ... -markdown-mode-error-on-preview-bin-bash-markdown-command-not-found...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

106 views

1 answer

Does WPF Work with C++?

My understanding is that Microsoft Visual Studio was rewritten to use WPF. I'm still not clear on why, but ... https://stackoverflow.com/questions/4776355/does-wpf-work-with-c...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

145 views

1 answer

c - looping through enum values

Is it possible to loop through enum values in Objective-C? question from:https://stackoverflow.com/questions/1662719/looping-through-enum-values...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

76 views

1 answer

(When) Should I learn compilers?

According to this http://steve-yegge.blogspot.com/2007/06/rich-programmer-food.html article, I defnitely ... //stackoverflow.com/questions/733093/when-should-i-learn-compilers...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

Categories

Recent questions

Just Browsing Browsing

Most popular tags