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Equals operator for zeros (BigDecimal / Double) in Java

A few interesting observations w.r.t equals operator on 0 and 0.0 new Double(0.0).equals(0) returns ... .com/questions/9992006/equals-operator-for-zeros-bigdecimal-double-in-java...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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234 views

1 answer

vim - Horizontal navigation in long lines

How can I do the following: shift faster to the right, something like zw (analogy to zl but jump ... ://stackoverflow.com/questions/5989739/horizontal-navigation-in-long-lines...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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316 views

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Do I need to explicitly close the StreamReader in C# when using it to load a file into a string variable?

Example: variable = new StreamReader( file ).ReadToEnd(); Is that acceptable? question from:https://stackoverflow.com/ ... -the-streamreader-in-c-sharp-when-using-it-to-load...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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101 views

1 answer

How to create Android Virtual Device with command line and avdmanager?

I can not create a device with avdmanager command line: $ Android/Sdk/tools/bin/avdmanager create avd --name ... -to-create-android-virtual-device-with-command-line-and-avdmanager...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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152 views

1 answer

javascript - Difference and intersection of two arrays containing objects

I have two arrays list1 and list2 which have objects with some properties; userId is the Id or ... questions/33356504/difference-and-intersection-of-two-arrays-containing-objects...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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128 views

1 answer

Haskell file reading

I have just recently started learning Haskell and I am having a lot of trouble trying to figure out how ... from:https://stackoverflow.com/questions/7867723/haskell-file-reading...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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263 views

1 answer

vim - Horizontal navigation in long lines

How can I do the following: shift faster to the right, something like zw (analogy to zl but jump ... ://stackoverflow.com/questions/5989739/horizontal-navigation-in-long-lines...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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218 views

1 answer

java - What does this expression language ${pageContext.request.contextPath} exactly do in JSP EL?

I have a web app, where I have different navigation anchor tags such as Home, Profile and etc. ( ... /what-does-this-expression-language-pagecontext-request-contextpath-exactly-do...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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200 views

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c# - Difference between SHA256CryptoServiceProvider and SHA256Managed

The .Net SHA256Managed class is supported in all framework versions while the ... questions/3554882/difference-between-sha256cryptoserviceprovider-and-sha256managed...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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191 views

1 answer

How to set up Spring Security SecurityContextHolder strategy?

I'm using asynchronous methods in my service (Spring 3 @Async annotation). And I've got a problem ... questions/3467918/how-to-set-up-spring-security-securitycontextholder-strategy...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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263 views

1 answer

haskell - Is there a way to see the list of functions in a module, in GHCI?

I find it handy in Python or Common Lisp that you can list a library's contents at runtime. Does Haskell have the same ... a-way-to-see-the-list-of-functions-in-a-module-in-ghci...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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222 views

1 answer

html - CSS Layout 2-Column fixed-fluid

(Closed.) This question does not meet Stack Overflow guidelines. It is not currently accepting answers. question ... .com/questions/580195/css-layout-2-column-fixed-fluid...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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315 views

1 answer

.net - Circular References Cause Memory Leak?

I'm trying to run down a memory leak in a windows forms application. I'm looking now at a form ... https://stackoverflow.com/questions/400706/circular-references-cause-memory-leak...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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240 views

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scala - How to flatten list of options using higher order functions?

Using Scala 2.7.7: If I have a list of Options, I can flatten them using a for-comprehension: val ... questions/2895069/how-to-flatten-list-of-options-using-higher-order-functions...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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104 views

1 answer

javascript - How do I use external script that I add to react JS?

I would like to add to my react component a <script>http://xxx.xxx/XX.js</script> I know I can simply add it ... /53396307/how-do-i-use-external-script-that-i-add-to-react-js...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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206 views

1 answer

In Django, how do you make a model refer to itself?

Assume we have class Employee. I want to have a field which references a different instance of the same class. How to ... 4910905/in-django-how-do-you-make-a-model-refer-to-itself...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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249 views

1 answer

When to use `self.foo` instead of `foo` in Ruby methods

This is not specific for Rails - I am just using Rails as an example. I have a model in Rails: class Item < ... /4699687/when-to-use-self-foo-instead-of-foo-in-ruby-methods...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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141 views

1 answer

.net - Can object constructor return a null?

We have taken over some .NET 1.1 Windows Service code that spawns threads to read messages off a queue ... /stackoverflow.com/questions/438325/can-object-constructor-return-a-null...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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374 views

1 answer

symfony - How to access the entity inside the buildForm method of a form

I'm trying to get the entity inside the own form. I lazy remember a getData() method, but it doesn't exist ... /how-to-access-the-entity-inside-the-buildform-method-of-a-form...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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202 views

1 answer

css - Which is better, #fff or #FFF?

question from:https://stackoverflow.com/questions/3733172/which-is-better-fff-or-fff...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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249 views

1 answer

javascript - execute a function when *ngFor finished in angular 2

I trying to create a application with angular 2,i want when last element rendered in *ngFor,execute a function, ... /37087864/execute-a-function-when-ngfor-finished-in-angular-2...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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89 views

1 answer

javascript - Node.js Alert Causes Crash

I'm trying to create a node.js app and alert('Sample Alert'); is causing my program to crash. Node ... from:https://stackoverflow.com/questions/11618456/node-js-alert-causes-crash...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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236 views

1 answer

git commit best practices

I am using git to manage a C++ project. When I am working on the projects, I find it hard to ... question from:https://stackoverflow.com/questions/6543913/git-commit-best-practices...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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84 views

1 answer

c# - What is the performance of the Last() extension method for List<T>?

I really like Last() and would use it all the time for List<T>s. But since it seems to be defined for ... /1377864/what-is-the-performance-of-the-last-extension-method-for-listt...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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311 views

1 answer

python - How can we use tqdm in a parallel execution with joblib?

I want to run a function in parallel, and wait until all parallel nodes are done, using joblib. Like in the ... 37804279/how-can-we-use-tqdm-in-a-parallel-execution-with-joblib...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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753 views

1 answer

c# - The type or namespace name 'Reporting' does not exist in the namespace 'Microsoft'

I simply get the following error: The type or namespace name 'Reporting' does not exist in the namespace ' ... -namespace-name-reporting-does-not-exist-in-the-namespace-microsof...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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333 views

1 answer

xcode - Calling Function from another class swift

Im having trouble calling a function in my GameViewController.swift from another class, Menu.swift. I call the ... .com/questions/26082072/calling-function-from-another-class-swift...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

1 answer

ArgumentError (too few arguments): when calling format.json on rails 4.04

When executing format.json{render json: {}, status: :ok} in Rails 4.0.4, I get the following error: ... argumenterror-too-few-arguments-when-calling-format-json-on-rails-4-04...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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