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java - JSP tricks to make templating easier?

At work I've been tasked with turning a bunch of HTML files into a simple JSP project. It's really all ... include for each wrapper, which is kind of messy. Question&Answers:os...

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

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200 views

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Correct way to try/except using Python requests module?

try: r = requests.get(url, params={'s': thing}) except requests.ConnectionError, e: print e #should I also ... to structure this? Will this cover all my bases? Question&Answers:os...

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

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112 views

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php - New self vs. new static

I am converting a PHP 5.3 library to work on PHP 5.2. The main thing standing in my way is the use ... What is the difference between new self and new static? Question&Answers:os...

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

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How can I get file extensions with JavaScript?

See code: var file1 = "50.xsl"; var file2 = "30.doc"; getFileExtension(file1); //returns xsl ... doc function getFileExtension(filename) { /*TODO*/ } Question&Answers:os...

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

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232 views

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JavaScript/JQuery: $(window).resize how to fire AFTER the resize is completed?

I'm using JQuery as such: $(window).resize(function() { ... }); However, it appears that if the person ... resize completed (so that the event only fires once)? Question&Answers:os...

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

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283 views

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shell - What is the purpose of the : (colon) GNU Bash builtin?

What is the purpose of a command that does nothing, being little more than a comment leader, but is ... is what historical application it might have had. Question&Answers:os...

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

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What's the difference between Perl's backticks, system, and exec?

Can someone please help me? In Perl, what is the difference between: exec "command"; and system("command"); ... Are there other ways to run shell commands too? Question&Answers:os...

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

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254 views

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Remove blank attributes from an Object in Javascript

How do I remove all attributes which are undefined or null in a JavaScript object? (Question is similar to this one for Arrays) Question&Answers:os...

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

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157 views

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python - How to run functions in parallel?

I researched first and couldn't find an answer to my question. I am trying to run multiple functions in parallel in ... isn't there it will throw off my timing. Question&Answers:os...

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

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287 views

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Detect if Android device has Internet connection

I need to tell if my device has Internet connection or not. I found many answers like: private boolean ... not if it is only connected to something? Question&Answers:os...

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

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1.2k views

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authentication - Set cookies for cross origin requests

How to share cookies cross origin? More specifically, how to use the Set-Cookie header in combination with the header Access ... . Yet, there's still no luck... Question&Answers:os...

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

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96 views

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sql - Condition within JOIN or WHERE

Is there any difference (performance, best-practice, etc...) between putting a condition in the JOIN clause vs. the ... ' Which do you prefer (and perhaps why)? Question&Answers:os...

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

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230 views

1 answer

urllib2 - Downloading a picture via urllib and python

So I'm trying to make a Python script that downloads webcomics and puts them in a folder on my desktop. I've ... to date" # prints if all comics are downloaded Question&Answers:os...

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

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240 views

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java - Number of days between two dates in Joda-Time

How do I find the difference in Days between two Joda-Time DateTime instances? With difference in days' I mean if ... between 14:01 and 14:55 would be 0. Question&Answers:os...

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

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209 views

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javascript - How to send JSON instead of a query string with $.ajax?

Can someone explain in an easy way how to make jQuery send actual JSON instead of a query string? $. ... probably because of limitations of the query sting. Question&Answers:os...

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

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136 views

1 answer

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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81 views

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How do I return multiple values from a function in C?

If I have a function that produces a result int and a result string, how do I return them both from a ... as determined by the type preceding the function name. Question&Answers:os...

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

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542 views

1 answer

android - Environment.getExternalStorageDirectory() deprecated in API level 29 java

Working on android Java, recently updated SDK to API level 29 now there is a warning shown which states that ... } What will be the alternative for this? Question&Answers:os...

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

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153 views

1 answer

mysql - Select values that meet different conditions on different rows?

This is a very basic query I can't figure out.... Let's say I have a two column table like this: userid | ... I want returned is userid 1. How do I do this? Question&Answers:os...

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

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354 views

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delay - Is process in VHDL reentrant?

Is it possible two or more sequential run for a process in VHDL? What will happen if another event happen ( ... model in mind for process is completely wrong? Question&Answers:os...

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

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276 views

1 answer

c# - Enum "Inheritance"

I have an enum in a low level namespace. I'd like to provide a class or enum in a mid level namespace ... structure as an enum. The service cannot be changed. Question&Answers:os...

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

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479 views

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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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144 views

1 answer

javascript - Sum similar keys in an array of objects

I have an array of objects like the following: [ { 'name': 'P1', 'value': 150 }, { 'name': 'P1', 'value': 150 }, { ... : 200 }, { 'name': 'P3', 'value': 450 } ] Question&Answers:os...

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

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176 views

1 answer

html - Vertically center two elements within a div

This question already has answers here: Question&Answers:os...

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

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176 views

1 answer

Evil merges in git?

"man gitglossary" contains this definition of an evil merge: An evil merge is a merge that introduces changes that do not ... trying to get at. Why is it evil ? Question&Answers:os...

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

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120 views

1 answer

sql - Upserting in MS-access

I need to write an SQL query for MS-Access 2000 so that a row is updated if it exists, but inserted if it does ... VALUES (...) Can this be done in one query? Question&Answers:os...

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

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271 views

1 answer

excel - VLOOKUP with multiple criteria returning values in one cell

I found this VBA that is capable to return all matching values into one cell using one criteria to match: Function ... A.0002 matches. Outcome should be 8 3 Question&Answers:os...

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

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221 views

1 answer

c++ - Will two atomic writes to different locations in different threads always be seen in the same order by other threads?

Similar to my previous question, consider this code -- Initially -- std::atomic<int> x{0}; std::atomic ... would prevent the weird outcome. Can anyone explain? Question&Answers:os...

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

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