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android - How to POST raw whole JSON in the body of a Retrofit request?

This question may have been asked before but no it was not definitively answered. How exactly does one post raw whole ... right in. Can we do this in Retrofit? Question&Answers:os...

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html - Bootstrap row with columns of different height

I currently have something like: <div class="row"> <div class="col-md-4">Content</div> <div class=" ... fall directly under the last element ("Masonry" layout) Question&Answers:os...

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

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bash - When do we need curly braces around shell variables?

In shell scripts, when do we use {} when expanding variables? For example, I have seen the following: var=10 ... just style? Is one preferred over the other? Question&Answers:os...

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

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javascript - Object destructuring without var, let or const

Why does object destructuring throw an error if there is no var keyword in front of it? {a, b} = {a: 1, ... to them? {a, b} = objectReturningFunction(); } Question&Answers:os...

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c# - Any difference between "await Task.Run(); return;" and "return Task.Run()"?

Is there any conceptual difference between the following two pieces of code: async Task TestAsync() { await Task. ... even where there is no asynchrony. Why? Question&Answers:os...

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

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url - Can I change all my http:// links to just //?

Dave Ward says, It's not exactly light reading, but section 4.2 of RFC 3986 provides for fully qualified ... -browser compatible? Are there any other caveats? 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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performance - INC instruction vs ADD 1: Does it matter?

From Ira Baxter answer on, Why do the INC and DEC instructions not affect the Carry Flag (CF)? Mostly, I stay ... INC doesn't update CF. But why it matters? Question&Answers:os...

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

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Sending data back to the Main Activity in Android

I have two activities: main activity and child activity. When I press a button in the main activity, the ... exceptions. Is there any solution for this? Question&Answers:os...

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html - Multiple inputs with same name through POST in php

Is it possible to get multiple inputs of the same name to post and then access them from PHP? The idea is this: ... the array of items with the name "xyz". Question&Answers:os...

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

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c# - How to dynamically create a class?

I have a class which looks like this: public class Field { public string FieldName; public string FieldType; } ... a physical CS file residing in my filesystem. Question&Answers:os...

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

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html - Set cellpadding and cellspacing in CSS?

In an HTML table, the cellpadding and cellspacing can be set like this: <table cellspacing="1" cellpadding="1"> How can the same be accomplished using CSS? Question&Answers:os...

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

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Is there a concise way to iterate over a stream with indices in Java 8?

Is there a concise way to iterate over a stream whilst having access to the index in the stream? String[] names ... the zip has either moved or been removed... Question&Answers:os...

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

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javascript - Why use named function expressions?

We have two different way for doing function expression in JavaScript: Named function expression (NFE): var boo ... . What difference is there between them? Question&Answers:os...

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

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highlighting - How to highlight text using javascript

Can someone help me with a javascript function that can highlight text on a web page. And the requirement is to - ... the text as we do in case of search. Question&Answers:os...

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

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php - How can I debug exec() problems?

The exec command doesn't work on my server, it does not do anything, I've had safe_mode off, and verified that ... 't know why the exec command isn't working. Question&Answers:os...

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

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Java Process with Input/Output Stream

I have the following code example below. Whereby you can enter a command to the bash shell i.e. echo test and have ... System.out.println ("Stdout: " + line); } Question&Answers:os...

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

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python - Delete a column from a Pandas DataFrame

When deleting a column in a DataFrame I use: del df['column_name'] And this works great. Why can't I use ... Series as df.column_name, I expected this to work. Question&Answers:os...

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

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html - How can I reorder my divs using only CSS?

Given a template where the HTML cannot be modified because of other requirements, how is it possible to ... sure elements following this aren't impacted. Question&Answers:os...

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

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c++ - Why is unsigned integer overflow defined behavior but signed integer overflow isn't?

Unsigned integer overflow is well defined by both the C and C++ standards. For example, the C99 standard ( ... better!) a technical reason for this discrepancy? Question&Answers:os...

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

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html - How to get the body's content of an iframe in Javascript?

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python - How to count the frequency of the elements in an unordered list?

I need to find the frequency of elements in an unordered list a = [1,1,1,1,2,2,2,2,3,3,4,5,5] output-> b = ... to remove the duplicates from a a = [1,2,3,4,5] Question&Answers:os...

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html - Why do browsers match CSS selectors from right to left?

CSS Selectors are matched by browser engines from right to left. So they first find the children and then check ... faster to evaluate CSS selectors LTR or RTL? Question&Answers:os...

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

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How do I install an R package from source?

A friend sent me along this great tutorial on webscraping NYtimes with R. I would really love to try it. However, ... package from source. I'm running Mac OSX. Question&Answers:os...

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

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javascript - Find an element in DOM based on an attribute value

Can you please tell me if there is any DOM API which search for an element with given attribute name ... : doc.findElementByAttribute("myAttribute", "aValue"); Question&Answers:os...

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

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c# - Direct casting vs 'as' operator?

Consider the following code: void Handler(object o, EventArgs e) { // I swear o is a string string s = ( ... you get the intent). Which one should be preferred? Question&Answers:os...

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

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How do I manage MongoDB connections in a Node.js web application?

I'm using the node-mongodb-native driver with MongoDB to write a website. I have some questions about how to ... used? Are there other things I should notice? Question&Answers:os...

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

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How to "log in" to a website using Python's Requests module?

I am trying to post a request to log in to a website using the Requests module in Python but its not really working ... to show up as if I were logged in. Question&Answers:os...

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

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