OStack Q&A-Knowledge Sharing Community

0 votes

196 views

1 answer

ios - How to develop or migrate apps for iPhone 5 screen resolution?

The new iPhone 5 display has a new aspect ratio and a new resolution (640 x 1136 pixels). What is ... the older displays and the new widescreen aspect ratio? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

147 views

1 answer

javascript - How to detect page zoom level in all modern browsers?

How can I detect the page zoom level in all modern browsers? While this thread tells how to do it in IE7 and IE8, I ... ());">Show</button> </body> </html> Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

253 views

1 answer

Find the min/max element of an array in JavaScript

How can I easily obtain the min or max element of a JavaScript array? Example pseudocode: let array = [100, 0, 50] array.min() //=> 0 array.max() //=> 100 Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

182 views

1 answer

css - Bootstrap align navbar items to the right

How do I align a navbar item to right? I want to have the login and register to the right. But everything I try does ... </ul> </nav> @yield('content') </div> Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

129 views

1 answer

sql - generate days from date range

I would like to run a query like select ... as days where `date` is between '2010-01-20' and '2010-01-24' And ... 2010-01-21 2010-01-22 2010-01-23 2010-01-24 Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

218 views

1 answer

jsf 2 - When to use <ui:include>, tag files, composite components and/or custom components?

I started using JSF 2.0 with Facelets recently and got puzzled by new composite components knowing ... of composite components? Could performance differ? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

72 views

1 answer

python - Why dict.get(key) instead of dict[key]?

Today, I came across the dict method get which, given a key in the dictionary, returns the associated value. For ... } dictionary["Name"] dictionary.get("Name") Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

361 views

1 answer

html - How to make an element width: 100% minus padding?

I have an html input. The input has padding: 5px 10px; I want it to be 100% of the parent div's width(which ... 100% + 20px how can I get around this? Example Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

93 views

1 answer

sql - Insert into ... values ( SELECT ... FROM ... )

I am trying to INSERT INTO a table using the input from another table. Although this is entirely ... values without worrying about the underlying database? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

213 views

1 answer

java - Why are static variables considered evil?

I am a Java programmer who is new to the corporate world. Recently I've developed an application using Groovy ... me if my assumptions about statics are wrong. Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

79 views

1 answer

javascript - window.close and self.close do not close the window in Chrome

The issue is that when I invoke window.close() or self.close() it doesn't close the window. Now there seems to ... case, it is a good solution in my case. Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

93 views

1 answer

java - How to generate a random alpha-numeric string

I've been looking for a simple Java algorithm to generate a pseudo-random alpha-numeric string. In my ... length 12 might look something like "AEYGF7K0DM1X". Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

76 views

1 answer

What are the differences between a multidimensional array and an array of arrays in C#?

What are the differences between multidimensional arrays double[,] and array-of-arrays double[][] in C#? If there is a ... , what is the best use for each one? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

174 views

1 answer

regex - JavaScript + Unicode regexes

How can I use Unicode-aware regular expressions in JavaScript? For example, there should be something akin to w that can ... like [[P*]] for punctuation, etc. Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

52 views

1 answer

How to read XML using XPath in Java

I want to read XML data using XPath in Java, so for the information I have gathered I am not able to ... from @name 'Javascript' only return one node element. Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

100 views

1 answer

c++ - When a function has a specific-size array parameter, why is it replaced with a pointer?

Given the following program, #include <iostream> using namespace std; void foo( char a[100] ) { cout << "foo() ... Why is the strict type-safety of C++ dropped? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

337 views

1 answer

networking - How can I connect to Android with ADB over TCP?

Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

342 views

1 answer

php - Can I parameterize the table name in a prepared statement?

I've used the mysqli_stmt_bind_param function several times. However, if I separate variables that I'm trying to ... $protocol ); $statement->execute(); } Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

306 views

1 answer

string - Extract filename and extension in Bash

I want to get the filename (without extension) and the extension separately. The best solution I found so far is: ... for this, if possible. Any better ideas? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

304 views

1 answer

r - Remove rows with all or some NAs (missing values) in data.frame

I'd like to remove the lines in this data frame that: a) contain NAs across all columns. Below is my example data ... NA NA 1 2 6 ENSG00000221312 0 1 2 3 2 Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

96 views

1 answer

python - What is the difference between class and instance attributes?

Is there any meaningful distinction between: class A(object): foo = 5 # some default value vs. class B( ... of the two styles to be significantly different? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

87 views

1 answer

python - Why do backslashes appear twice?

When I create a string containing backslashes, they get duplicated: >>> my_string = "whydoesithappen?" >>> my_string 'why\does\it\happen?' Why? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

226 views

1 answer

c++ - Difference between private, public, and protected inheritance

What is the difference between public, private, and protected inheritance in C++? All of the questions I've found on SO deal with specific cases. Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

414 views

1 answer

c# - Collection was modified; enumeration operation may not execute

I can't get to the bottom of this error, because when the debugger is attached, it does not seem to occur. ... "Unsubscribe Error " + e.Message); } } } Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

179 views

1 answer

php - Replace preg_replace() e modifier with preg_replace_callback

I'm terrible with regular expressions. I'm trying to replace this: public static function camelize($word) { ... would be the correct code for achieving this? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

67 views

1 answer

javascript - Get the size of the screen, current web page and browser window

How can I get windowWidth, windowHeight, pageWidth, pageHeight, screenWidth, screenHeight, pageX, pageY, screenX, screenY which will work in all major browsers? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

200 views

1 answer

How to find event listeners on a DOM node in JavaScript or in debugging?

I have a page where some event listeners are attached to input boxes and select boxes. Is there a ... s addEventListener; As element attribute element.onclick. Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

92 views

1 answer

python - Sorting list based on values from another list

I have a list of strings like this: X = ["a", "b", "c", "d", "e", "f", "g", "h", "i ... constructs but I am curious if there is a shorter way. Any suggestions? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

Categories

Recent questions

Just Browsing Browsing

Most popular tags