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php - Warning: mysql_connect(): [2002] No such file or directory (trying to connect via unix:///tmp/mysql.sock) in

I'm trying to connect to my MySQL DB with the Terminal on my Apple (With PHP). Yesterday it worked fine, and ... I use at the Terminal is php scriptname.php. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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debugging - What does status=canceled for a resource mean in Chrome Developer Tools?

What would cause a page to be canceled? I have a screenshot of the Chrome Developer Tools. This happens often ... Any ideas why Chrome would cancel a request? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - When to use generic methods and when to use wild-card?

I am reading about generic methods from OracleDocGenericMethod. I am pretty confused about the comparison when it says ... Can someone put light on this area. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How to get C# Enum description from value?

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asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How to get the caller's method name in the called method?

Python: How to get the caller's method name in the called method? Assume I have 2 methods: def method1(self) ... this example, the name is method1) in method2? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - jQuery: Get height of hidden element in jQuery

I need to get height of an element that is within a div that is hidden. Right now I show the div, get the ... can only get height if its visible $select.hide(); Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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What is the "continue" keyword and how does it work in Java?

I saw this keyword for the first time and I was wondering if someone could explain to me what it does. What is ... keyword? How does it work? When is it used? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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oop - How is almost everything in Javascript an object?

I read this a lot in many JavaScript introductions. I just don't understand it. I always think of objects as ... since I did start learning about JavaScript... Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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html - Responsively change div size keeping aspect ratio

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asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Generate a heatmap in MatPlotLib using a scatter data set

I have a set of X,Y data points (about 10k) that are easy to plot as a scatter plot but that I would like ... with higher frequency of x,y would be "warmer")? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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regex - Is it worth using Python's re.compile?

Is there any benefit in using compile for regular expressions in Python? h = re.compile('hello') h.match('hello world') vs re.match('hello', 'hello world') Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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html - How to make CSS3 rounded corners hide overflow in Chrome/Opera

I need round corners on a parent div to mask content from its childen. overflow: hidden works in simple ... have not re-tested Opera or Safari however. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How to limit execution time of a function call?

There is a socket related function call in my code, that function is from another module thus out of my ... I guess the solution must utilize another thread. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - Flatten List in LINQ

I have a LINQ query which returns IEnumerable<List<int>> but i want to return only List<int> so i want to merge all my ... one array [1,2,3,4,5,6,7] Thanks Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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math - How to resolve a Java Rounding Double issue

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asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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regex - Validating IPv4 addresses with regexp

I've been trying to get an efficient regex for IPv4 validation, but without much luck. It seemed at one point I had had ... 1-3 numbers, or do not work for me. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How to upload file using Selenium WebDriver in Java

Can anyone let me know how to upload a file using Selenium by Java code? When I click on button in the ... . The browse button developed by Silverlight (C#). Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Does return stop a loop?

Suppose I have a loop like this: for (var i = 0; i < SomeArrayOfObject.length; i++) { if (SomeArray[i]. ... stop the execution of the loop in and of itself? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Press Keyboard keys using a batch file

Closed. This question needs debugging details. It is not currently accepting answers. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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C function syntax, parameter types declared after parameter list

I'm relatively new to C. I've come across a form of function syntax I've never seen before, where the parameter types ... argc; char *argv[]; { return(0); } Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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432 views

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assembly - How do AX, AH, AL map onto EAX?

My understanding of x86 registers say that each register can be accessed by the entire 32 bit code and it is broken ... if it is what value does AH truly hold? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How do I read a resource file from a Java jar file?

I'm trying to access an XML file within a jar file, from a separate jar that's running as a desktop ... with using this technique to read the XML file? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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bignum - Working with large numbers in PHP

To use modular exponentiation as you would require when using the Fermat Primality Test with large numbers (100, ... values that would work for large numbers? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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html - Several elements with the same ID responding to one CSS ID selector

Is it safe to give several elements the same ID in one page? For example this often happens, when using some jquery plugins, ... "red">I am a red text too.</p> Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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What is HEAD in Git?

You see the Git documentation saying things like The branch must be fully merged in HEAD. But what is Git HEAD exactly? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ruby - How to pass command line arguments to a rake task

I have a rake task that needs to insert a value into multiple databases. I'd like to pass this value into the ... from another rake task. How can I do this? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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335 views

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networking - Network tools that simulate slow network connection

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

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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590 views

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http - "CAUTION: provisional headers are shown" in Chrome debugger

I noticed a strange caution message when looking at downloaded resources using Google chrome inspector (F12): Caution ... message means and why I received it. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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