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c# - Generating all Possible Combinations

Given 2 arrays Array1 = {a,b,c...n} and Array2 = {10,20,15....x} how can I generate all possible combination as ... b2 c1 a3 b2 c2 a3 b2 c3 a3 b2 c4 (last) Question&Answers:os...

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casting void** to 2D array of int - C

i am trying to cast a void** pointer to an int** 2D array in C here is the code that i am trying to work ... me the warning that it is set but not used? thanks Question&Answers:os...

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rest - RESTful Authentication

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sql server - Inserting multiple rows in a single SQL query?

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Format JavaScript date as yyyy-mm-dd

I have a date with the format Sun May 11,2014. How can I convert it to 2014-05-11 using JavaScript? ... May 11,2014'); console.log(taskDate(datemilli)); Question&Answers:os...

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javascript - jQuery selector regular expressions

I am after documentation on using wildcard or regular expressions (not sure on the exact terminology) with a ... based on patterns of an attribute value. Question&Answers:os...

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java - How to add local .jar file dependency to build.gradle file?

So I have tried to add my local .jar file dependency to my build.gradle file: apply plugin: 'java' sourceSets ... /github.com/WalnutiQ/wAlnut/tree/version-2.3.1 Question&Answers:os...

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What do the following phrases mean in C++: zero-, default- and value-initialization?

What do the following phrases mean in C++: zero-initialization, default-initialization, and value-initialization What should a C++ developer know about them? Question&Answers:os...

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Build tree array from flat array in javascript

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python - Remove all the elements that occur in one list from another

Let's say I have two lists, l1 and l2. I want to perform l1 - l2, which returns all elements of l1 not in l2. I can ... [2,3,5,8], l1 - l2 should return [1,6] Question&Answers:os...

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javascript - Array.prototype.fill() with object passes reference and not new instance

I was toying a bit and was trying to instantiate a new array of length x, where all elements of that array were ... ? Or should I just convert it to a loop? Question&Answers:os...

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git - Make .gitignore ignore everything except a few files

I understand that a .gitignore file cloaks specified files from Git's version control. I have a project (LaTeX) that ... ... script.pl template.latex # etc... Question&Answers:os...

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dependency injection - Is there a pattern for initializing objects created via a DI container

I am trying to get Unity to manage the creation of my objects and I want to have some initialization parameters ... ? Edit: Described the interface a bit more. Question&Answers:os...

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language agnostic - Difference between pre-increment and post-increment in a loop?

Is there a difference in ++i and i++ in a for loop? Is it simply a syntax thing? Question&Answers:os...

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javascript - onclick="" vs event handler

If I want a function to be executed, I prefer doing inline js: <p id="element" onclick="doSomething() ... doSomething; Why is the js event listener recommended? Question&Answers:os...

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c# - Interaction between forms — How to change a control of a form from another form?

I would like to set comboBox.SelectedValue when I select the row in my dataGridView on first form to populate comboBox ... works great when I do it on one form Question&Answers:os...

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python - How do I find the duplicates in a list and create another list with them?

How can I find the duplicates in a Python list and create another list of the duplicates? The list only contains integers. Question&Answers:os...

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How to sort an array of associative arrays by value of a given key in PHP?

Given this array: $inventory = array( array("type"=>"fruit", "price"=>3.50), array("type"=>"milk", "price"=>2.90), ... , "price"=>2.90), ); How can I do this? Question&Answers:os...

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Make a link in the Android browser start up my app?

Is it possible to make a link such as: <a href="anton://useful_info_for_anton_app">click me!</a> cause my ... category.DEFAULT" /> </intent-filter> </activity> Question&Answers:os...

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Convert hex string to int in Python

How do I convert a hex string to an int in Python? I may have it as "0xffff" or just "ffff". Question&Answers:os...

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c# - How to pass an array into a SQL Server stored procedure

How to pass an array into a SQL Server stored procedure? For example, I have a list of employees. I want ... of employees should be passed as parameter from C#. Question&Answers:os...

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java - How do you make a deep copy of an object?

It's a bit difficult to implement a deep object copy function. What steps you take to ensure the original object and the cloned one share no reference? Question&Answers:os...

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Check if page gets reloaded or refreshed in JavaScript

I want to check when someone tries to refresh a page. For example, when I open a page nothing happens but when I refresh the page it should display an alert. Question&Answers:os...

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

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How can I check for an empty/undefined/null string in JavaScript?

I saw this question, but I didn't see a JavaScript specific example. Is there a simple string.Empty available in ... it just a case of checking for ""? Question&Answers:os...

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How is Docker different from a virtual machine?

I keep rereading the Docker documentation to try to understand the difference between Docker and a full ... deploying to a consistent production environment? Question&Answers:os...

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python - Meaning of @classmethod and @staticmethod for beginner?

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c# - Performance differences between debug and release builds

I must admit, that usually I haven't bothered switching between the Debug and Release configurations in my ... will also work fine under Release configuration. Question&Answers:os...

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c# - How would you count occurrences of a string (actually a char) within a string?

I am doing something where I realised I wanted to count how many /s I could find in a string, and then it ... .Replace(needle,"").Length ) / needle.Length; Question&Answers:os...

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

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