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css - How to remove the stripes that appears when using linear gradient property

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

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r - Convert a list to a data frame

I have a nested list of data. Its length is 132 and each item is a list of length 20. Is there a quick way ... as.list(sample(letters, 20)), simplify = FALSE ) Question&Answers:os...

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

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algorithm - Constant Amortized Time

What is meant by "Constant Amortized Time" when talking about time complexity of an algorithm? Question&Answers:os...

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

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How to detect internet speed in JavaScript?

How can I create a JavaScript page that will detect the user’s internet speed and show it on the page? Something like “your internet speed is ??/?? Kb/s”. Question&Answers:os...

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

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java - Initialize class fields in constructor or at declaration?

I've been programming in C# and Java recently and I am curious where the best place is to initialize my class ... to be consistent and stick to one approach. Question&Answers:os...

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

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Setting the correct encoding when piping stdout in Python

When piping the output of a Python program, the Python interpreter gets confused about encoding and sets it to None. ... there a better way to make piping work? Question&Answers:os...

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

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python - JSON to pandas DataFrame

What I am trying to do is extract elevation data from a google maps API along a path specified by ... up dataframe having columns latitude, longitude, elevation Question&Answers:os...

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

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javascript - How to set caret(cursor) position in contenteditable element (div)?

I have this simple HTML as an example: <div id="editable" contenteditable="true"> text text text<br> ... possible to set manually caret position like this ? Question&Answers:os...

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

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c# - Using CookieContainer with WebClient class

I've previously used a CookieContainer with HttpWebRequest and HttpWebResponse sessions, but now, I want to use it with a ... Is this the best way to do it? Question&Answers:os...

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

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regex - Regular expression for floating point numbers

I have a task to match floating point numbers. I have written the following regular expression for it: [-+]?[0-9 ... . also. Please correct me where I am wrong. Question&Answers:os...

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

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r - Collapse text by group in data frame

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

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recovery - How to recover a dropped stash in Git?

I frequently use git stash and git stash pop to save and restore changes in my working tree. Yesterday I had ... m asking because there must be an easier way! Question&Answers:os...

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

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bash - What are the special dollar sign shell variables?

In Bash, there appear to be several variables which hold special, consistently-meaning values. For instance, ./ ... is the current TTY. Are there others? Question&Answers:os...

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

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javascript - How to remove item from array by value?

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

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windows - Key hash for Android-Facebook app

I'm working on an Android app, in which I want to integrate a Facebook posting feature. I downloaded the Facebook- ... hash for Android. How do I generate it? Question&Answers:os...

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

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How to filter array in subdocument with MongoDB

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

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php - Query with multiple values in a column

I have a table like: id name children 1 Roberto Michael,Dia 2 Maria John,Alex 3 Mary Alexandre,Diana My ... can explain my problem with my terrible english :D Question&Answers:os...

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

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computer science - What is the difference between statically typed and dynamically typed languages?

I hear a lot that new programming languages are dynamically typed but what does it actually mean when we ... language is dynamically typed vs. statically typed? Question&Answers:os...

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

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Reset/remove CSS styles for element only

I'm sure this must have been mentioned/asked before but have been searching for an age with no luck, ... without having to declare every property. Makes sense? Question&Answers:os...

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

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javascript - Use of .apply() with 'new' operator. Is this possible?

In JavaScript, I want to create an object instance (via the new operator), but pass an arbitrary number of arguments to ... { return new F(arguments); } })(); Question&Answers:os...

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

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operator precedence - What are the rules for evaluation order in Java?

I am reading some Java text and got the following code: int[] a = {4,4}; int b = 1; a[b] = b ... not so sure that I understand: how did the evaluation happen? Question&Answers:os...

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

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java - How to handle CORS using JAX-RS with Jersey

I'm developing a java script client application, in server-side I need to handle CORS, all the services I had ... me with this. Thanks & Regards Buddha Puneeth Question&Answers:os...

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

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namespaces - What does "var FOO = FOO || {}" (assign a variable or an empty object to that variable) mean in Javascript?

Looking at an online source code I came across this at the top of several source files. var FOO = FOO || {}; FOO ... I see this at the top of a source file? Question&Answers:os...

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

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86 views

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javascript - Highlight a word with jQuery

I basically need to highlight a particular word in a block of text. For example, pretend I wanted to highlight ... would make things perhaps a bit more tidy. Question&Answers:os...

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

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Best XML Parser for PHP

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

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150 views

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python - How to wait some time in pygame?

While I've been using time.wait in my code since I began learning Python and Pygame, I've been wondering ... wait some time besides using these two functions? Question&Answers:os...

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

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Stretch and scale a CSS image in the background - with CSS only

I want that my background image stretch and scale depending on the browser viewport size. I've seen some ... to do it with the background-image declaration? Question&Answers:os...

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

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sql - Simple PHP Pagination script

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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