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sql - How to pivot in SQLite or i.e. select in wide format a table stored in long format?

I'd like to get a table which stores students data in long format and the marks they receive for all of their subjects in ... -i-e-select-in-wide-format-a-table-stored-in-long-form...

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

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symfony - Twig: prevent parsing of client-side templates

I need to output a portion of client-side handlebars templates, which has tags similar to twig's 'say' ... .com/questions/9443313/twig-prevent-parsing-of-client-side-templates...

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

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php - Session data lost in Chrome only

I have a problem similar if not identical to the problem in this thread: Randomly Losing Session Variables ... stackoverflow.com/questions/8247842/session-data-lost-in-chrome-only...

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

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iphone - What can cause "invalid binary" with no email followup from iTunes Connect?

I'm trying to submit an update of an existing application on behalf of one of my clients, and I'm getting ... -can-cause-invalid-binary-with-no-email-followup-from-itunes-connect...

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

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testing - How to rollback, reset, or drop Ecto test database?

Usually mix.test cleans the test database, but it is not working. It may be because I was playing around ... questions/42162347/how-to-rollback-reset-or-drop-ecto-test-database...

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

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reactjs - Why componentDidMount gets called multiple times in react.js & redux?

I read componentDidMount gets called only once for initial rendering but I'm seeing it's getting rendered ... -componentdidmount-gets-called-multiple-times-in-react-js-redux...

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Python: Iterating through a dictionary gives me "int object not iterable"

Here's my function: def printSubnetCountList(countList): print type(countList) for k, v in countList: if value: ... -iterating-through-a-dictionary-gives-me-int-object-not-iterable...

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

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asp.net - Remove HTML or ASPX Extension

In a hosted IIS7 environment, I am looking for the simplest way to use extension-less file names. Simply I ... ://stackoverflow.com/questions/4481632/remove-html-or-aspx-extension...

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MySQL query - using SUM of COUNT

This query: SELECT COUNT(source) AS count FROM call_details GROUP BY source HAVING count >1 Returns about ... stackoverflow.com/questions/6709747/mysql-query-using-sum-of-count...

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Version control for Smalltalk / Seaside?

I'm primarily a Java EE developer. I've been asked to explore the possibility of using Smalltalk / ... ://stackoverflow.com/questions/8244502/version-control-for-smalltalk-seaside...

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

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r - How to reliably get dependent variable name from formula object?

Let's say I have the following formula: myformula<-formula("depVar ~ Var1 + Var2") How to reliably get ... 13217322/how-to-reliably-get-dependent-variable-name-from-formula-object...

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Confusion between isNaN and Number.isNaN in javascript

I have a confusion in how NaN works. I have executed isNaN(undefined) it returned true . But if I ... com/questions/33164725/confusion-between-isnan-and-number-isnan-in-javascript...

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

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angularjs - $resource, what's the difference between get and query?

The documentation doesn't seem to specify: http://docs.angularjs.org/api/ngResource.$resource question from:https: ... /19455803/resource-whats-the-difference-between-get-and-query...

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ios - UICollectionViewFlowLayout Size Warning When Rotating Device to Landscape

We are using a UICollectionView to display cell that cover the full screen (minus the status ... 14469251/uicollectionviewflowlayout-size-warning-when-rotating-device-to-landscape...

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

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Ruby: initialize() vs class body?

In Ruby, what is the difference between putting code in an initialize() method rather than directly in the ... ://stackoverflow.com/questions/6043618/ruby-initialize-vs-class-body...

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

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javascript - Jquery UI autocomplete; minLength:0 issue

I am using a JQuery UI auto-complete. I am specifying the min length. If I specify minLength:2 I ... ://stackoverflow.com/questions/4604216/jquery-ui-autocomplete-minlength0-issue...

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Is git stash stack pushed to the remote repo?

Is my stash stack pushed to the remote repo? Or is it completely ignored? I'm just curious if I should tend ... com/questions/23952575/is-git-stash-stack-pushed-to-the-remote-repo...

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cocoa - How to add base SDK for 10.5 in xCode 4

I've installed xCode 4 last night and tried to compile a software which should support 10.5 and above OSs. It gave the ... /5378518/how-to-add-base-sdk-for-10-5-in-xcode-4...

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ruby on rails - get attribute of ActiveRecord object by string

It is probably a really simple thing but can't find a solution. I have an ActiveRecord object and want ... .com/questions/11808949/get-attribute-of-activerecord-object-by-string...

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

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Cannot find a version of 'com.android.support:support-annotations' that satisfies the version constraints

When i want to generate a signed APK (release) using Proguard rules i got this error message : Cannot ... -find-a-version-of-com-android-supportsupport-annotations-that-satisfie...

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

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java - Mapping enum types with Hibernate Annotations

I have an enum type on my Java model which I'd like to map to a table on the database. I' ... ://stackoverflow.com/questions/2569053/mapping-enum-types-with-hibernate-annotations...

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c# - Why doesn't this goto inside this switch work?

For this program: class Program { static void Main(string[] args) { var state = States.One; switch (state) ... .com/questions/23604677/why-doesnt-this-goto-inside-this-switch-work...

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c# - How to bind a control's property to another control's property?

I want that the SaveButton from my form to dissapear when the form is disabled. I do that this way: this. ... /9586956/how-to-bind-a-controls-property-to-another-controls-property...

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c++ - How can I use an enum class in a boolean context?

I have some generic code that works with flags specified using C++11 enum class types. At one step, I'd like to ... /9874960/how-can-i-use-an-enum-class-in-a-boolean-context...

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

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Environment variables in PowerShell with a dot (.) in the name

I know I can access environment variables in PowerShell using $Env. For example, I can access FOO with $Env:FOO ... /environment-variables-in-powershell-with-a-dot-in-the-name...

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javascript - Escape HTML using jQuery

(This question already has answers here): question from:https://stackoverflow.com/questions/6020714/escape-html-using-jquery...

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How to change the scrollbar color using css

(This question already has answers here): question from:https://stackoverflow.com/questions/12293275/how-to-change-the-scrollbar-color-using-css...

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

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Custom tags with Doxygen

I am trying to figure out if there is a way to create a custom tag using Doxygen. I did find the ... from:https://stackoverflow.com/questions/537043/custom-tags-with-doxygen...

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

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