All Questions

19771 questions

2 answers
420 views
0

Understanding Table Normalization

I've been designing DB tables so far, and I always get lost.It's about whether the name should be on the transaction table.Generally, it is good to code names and manage them centrally in a master tab...

database database-design

2 years ago

1 answers
254 views
0

The check box value cannot be retained.

I want to leave the checked items checked even after repeated screen transitions, but only the check box doesn't work well.Please let me know if you understand.window.onload=function onLoad(){// Cours...

javascript

2 years ago

1 answers
328 views
0

Understanding Rails Error Sprockets::Rails::Helper::AssetNotFound in Device::Registrations #new

I have a question because I didn't understand the following error when creating the app in Rails.When I checked, I ran railsasset:compile and updated the sprocket, but it was the same.I checked if the...

ruby-on-rails

2 years ago

2 answers
224 views
0

What is the definition of the word operator? (Python, another language)

In Python, = is not an operator It is said that So what is the definition of the word operator?I would appreciate it if you could tell me both Python and other languages.

python

2 years ago

2 answers
371 views
0

About char str, pointer, and *p.

For the following code, can the char type str[] only be displayed before the null is in the middle of the string?Also, can the pointer p hold only one memory address that the address points to?For exa...

c pointer

2 years ago

2 answers
383 views
0

Understanding $this Showing the Instance Himself in PHP

One reference book (Details PHP7 + MySQL Introductory Note p220)It is written in as follows.[ ] in <Reference Books>// [$name is to find local variable with the same name] value is null.In this ...

php

2 years ago

1 answers
418 views
0

Information on how to write to Swift like Objective-C if(test!=nil)

The contents described in Objective-C have been ported to Swift.I am not sure what to do with nil in Objective-C on Swift, so I have a question.How should I write Swift in the following way?MTLRenderP...

swift ios

2 years ago

1 answers
228 views
0

Understanding How Angular-Scully Plug-ins Reflect Config objects

I'm trying to launch a blog as a static site using Angular and Scully modules.I implemented the automatic generation of archive pages as a plug-in, but the setConfig function may not work well.Learn h...

typescript markdown angular

2 years ago

1 answers
247 views
0

There is a page where the location of the relevant company is displayed on a map from the regional search, but two of the same companies are displayed on some pages.

There is a page where the location of the relevant company is displayed on a map from the regional search, but two of the same companies are displayed on some pages.Example) Search results xx·Company ...

javascript php

2 years ago

2 answers
237 views
0

How do you use noxcept for practical use?

If you look at the commentary on noexcept, there was an explanation that the function should specify when it does not send an exception.For what purpose is it used in practical use?What purpose do you...

c++

2 years ago

- 139 -

Popular Tags

python x 4647

android x 1593

java x 1494

javascript x 1427

c x 927

c++ x 878

ruby-on-rails x 696

php x 692

python3 x 685

html x 656