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javascript - Can scripts be inserted with innerHTML?

I tried to load some scripts into a page using innerHTML on a <div>. It appears that the script loads into the DOM, but ... id="loader"></div> </body> </html> Question&Answers:os...

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

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r - The difference between bracket [ ] and double bracket [[ ]] for accessing the elements of a list or dataframe

R provides two different methods for accessing the elements of a list or data.frame: [] and [[]]. What is the ... , and when should I use one over the other? Question&Answers:os...

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

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762 views

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jsf - How to find out client ID of component for ajax update/render? Cannot find component with expression "foo" referenced from "bar"

The following code is inspired from PrimeFaces DataGrid + DataTable Tutorials and put into a <p:tab> of a <p:tabView> ... is this caused and how can I solve it? Question&Answers:os...

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

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278 views

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javascript - Abort Ajax requests using jQuery

Is it possible that using jQuery, I cancel/abort an Ajax request that I have not yet received the response from? Question&Answers:os...

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

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81 views

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java - How do I create a file and write to it?

What's the simplest way to create and write to a (text) file in Java? Question&Answers:os...

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

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android.os.FileUriExposedException: file:///storage/emulated/0/test.txt exposed beyond app through Intent.getData()

The app is crashing when I'm trying to open a file. It works below Android Nougat, but on Android Nougat it ... to open files in root directories. Any ideas? Question&Answers:os...

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

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math - Division of integers in Java

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

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python - Importing files from different folder

I have the following folder structure. application ├── app │?? └── folder │?? └── file.py └── app2 └── some_folder ... to import properly. How can I do this? Question&Answers:os...

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

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python - pandas convert some columns into rows

So my dataset has some information by location for n dates. The problem is each date is actually a different ... I know they will always start after name) Question&Answers:os...

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

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algorithm - How to count the number of set bits in a 32-bit integer?

8 bits representing the number 7 look like this: 00000111 Three bits are set. What are algorithms to determine the number of set bits in a 32-bit integer? Question&Answers:os...

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

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java - What does the 'static' keyword do in a class?

To be specific, I was trying this code: package hello; public class Hello { Clock clock = new Clock(); public ... terms of what can be done to that object? Question&Answers:os...

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

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How to get the difference between two arrays in JavaScript?

Is there a way to return the difference between two arrays in JavaScript? For example: var a1 = ['a', 'b']; var a2 = ['a', 'b', 'c', 'd']; // need ["c", "d"] Question&Answers:os...

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

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.net - Deserialize JSON into C# dynamic object?

Is there a way to deserialize JSON content into a C# dynamic type? It would be nice to skip ... of classes in order to use the DataContractJsonSerializer. Question&Answers:os...

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

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c# - Serialize and Deserialize Json and Json Array in Unity

I have a list of items send from a PHP file to unity using WWW. The WWW.text looks like: [ { "playerId": "1", " ... = {1}", kvp.Key, kvp.Value)); } Thanks! Question&Answers:os...

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

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122 views

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Web-scraping JavaScript page with Python

I'm trying to develop a simple web scraper. I want to extract text without the HTML code. In fact, I ... 'm looking for some ideas to solve this problem. Question&Answers:os...

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

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331 views

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Convert Rows to columns using 'Pivot' in SQL Server

I have read the stuff on MS pivot tables and I am still having problems getting this correct. I have a temp ... numbers down the side and weeks across the top. Question&Answers:os...

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

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416 views

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mysql - What's the difference between INNER JOIN, LEFT JOIN, RIGHT JOIN and FULL JOIN?

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

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229 views

1 answer

.htaccess - URL rewriting with PHP

I have a URL that looks like: url.com/picture.php?id=51 How would I go about converting that URL to: picture. ... How do I go about making friendly URLs in PHP? Question&Answers:os...

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

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115 views

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c# - How to detect click/touch events on UI and GameObjects

How to detect UI object on Canvas on Touch in android? For example, I have a canvas that have 5 objects such as ... touch? Is it same with that above or not? Question&Answers:os...

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

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226 views

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JavaScript post request like a form submit

I'm trying to direct a browser to a different page. If I wanted a GET request, I might say document.location.href = ... nor use XML, so Ajax is not the answer. Question&Answers:os...

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

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100 views

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python - What is the difference between __str__ and __repr__?

What is the difference between __str__ and __repr__ in Python? Question&Answers:os...

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

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75 views

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javascript - Remove duplicate values from JS array

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

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772 views

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r - Collapse / concatenate / aggregate a column to a single comma separated string within each group

I want to aggregate one column in a data frame according to two grouping variables, and separate the individual values by a comma. ... "5,7", and not as c(5,7). Question&Answers:os...

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

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245 views

1 answer

CSS selector for first element with class

I have a bunch of elements with a class name red, but I can't seem to select the first element with the class="red" ... /p> <p class="red">fourth</p> </div> Question&Answers:os...

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

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184 views

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javascript - What is event bubbling and capturing?

What is the difference between event bubbling and capturing? When should one use bubbling vs capturing? Question&Answers:os...

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

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345 views

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How do you close/hide the Android soft keyboard programmatically?

I have an EditText and a Button in my layout. After writing in the edit field and clicking on the Button, I want to ... , but where can I find an example of it? Question&Answers:os...

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

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151 views

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c# - How do I properly clean up Excel interop objects?

I'm using the Excel interop in C# (ApplicationClass) and have placed the following code in my finally ... ensure interop objects are properly disposed of? Question&Answers:os...

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

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125 views

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r - How to sort a dataframe by multiple column(s)

I want to sort a data.frame by multiple columns. For example, with the data.frame below I would like to sort by column z ( ... 3 1 3 Hi A 9 1 4 Low C 9 2 Question&Answers:os...

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

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