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How to read and import .csv file in groovy on grails. I have .csv file with data and need to import ... from:https://stackoverflow.com/questions/2621180/groovy-load-csv-files...

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java - QR Code encoding and decoding using zxing

Okay, so I'm going to take the off chance that someone here has used zxing before. I'm developing ... stackoverflow.com/questions/2489048/qr-code-encoding-and-decoding-using-zxing...

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python - pip freeze without dependencies of installed packages

When I do pip freeze I get the packages I've explicitly installed plus those packages that are ... /questions/5900201/pip-freeze-without-dependencies-of-installed-packages...

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

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

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

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python - Is there a difference between [] and list() when using id()?

Can somebody explain the following? Why is the id the same, but the lists are different? >>> [] is [] ... /questions/40820787/is-there-a-difference-between-and-list-when-using-id...

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scala - Why do case class companion objects extend FunctionN?

When you create a case class, the compiler creates a corresponding companion object with a few of the ... questions/3049368/why-do-case-class-companion-objects-extend-functionn...

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

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browser - In Cypress, set a token in localStorage before test

I want to login and set a localStorage token on the client (specifically jwt) How can I accomplish this using ... /50820732/in-cypress-set-a-token-in-localstorage-before-test...

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javascript - THREE.js generate UV coordinate

I am working on importing a model into a scene using the THREE.js OBJ loader. I know that I am ... :https://stackoverflow.com/questions/20774648/three-js-generate-uv-coordinate...

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c++ - How to set row height of QTableView?

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c++ - cannot call member function without object

This program has the user input name/age pairs and then outputs them, using a class. Here is the ... /stackoverflow.com/questions/1127738/cannot-call-member-function-without-object...

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git - How to set up your avatar in SourceTree.app?

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

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Check whether one number equals another number in bash

I've been trying to compare whether two numbers in Bash are equal (and print a message if they are ... questions/15867813/check-whether-one-number-equals-another-number-in-bash...

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shortcut of making vim windows/panels equally in height

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swift - Is there a difference between "is" and isKindOfClass()?

Swift provides the is keyword (and as?) to check whether an object can be downcast successfully: if foo ... /questions/24877661/is-there-a-difference-between-is-and-iskindofclass...

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linux - Use SSH to start a background process on a remote server, and exit session

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visual studio code - VSCode system-wide installation warning

These days, anytime I start VSCode, I get this warning You are running the system-wide installation ... stackoverflow.com/questions/51859725/vscode-system-wide-installation-warning...

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database - Postgresql Docker role does not exist

I downloaded the docker container for postgres: https://hub.docker.com/r/library/postgres/, and did ... stackoverflow.com/questions/48593016/postgresql-docker-role-does-not-exist...

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android - Adb backup does not work

I need help from you guys, because I don't know what I did wrong with adb backup. I want to backup my ... from:https://stackoverflow.com/questions/34482042/adb-backup-does-not-work...

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iphone - iOS - add contact into Contacts?

Heyo! Is there a way how when a user taps a button it can add or update a contact into the actual ... :https://stackoverflow.com/questions/15625447/ios-add-contact-into-contacts...

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android - ViewPager + FragmentPagerAdapter inside a DialogFragment gets "IllegalArgumentException:No view found..."

I am trying to show a FragmentDialog ( created and shown as a dialog NOT added as ... /13334733/viewpager-fragmentpageradapter-inside-a-dialogfragment-gets-illegalargumentex...

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ruby - Asking questions in rake tasks

I have a rake task that is called from another rake task. In this rake task I need to ask the user ... :https://stackoverflow.com/questions/5221020/asking-questions-in-rake-tasks...

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

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matlab - What is a function handle and how is it useful?

Can somebody explain to me the meaning of the @ (function handle) operator and why to use it? question from:https: ... /796935/what-is-a-function-handle-and-how-is-it-useful...

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What is the significance of the reverse domain name for java package structure

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

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c# - What is the difference between an Array, ArrayList and a List?

(This question already has answers here): question from:https://stackoverflow.com/questions/32020000/what-is-the-difference-between-an-array-arraylist-and-a-list...

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

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Concise way to getattr() and use it if not None in Python

I am finding myself doing the following a bit too often: attr = getattr(obj, 'attr', None) if attr is not None: ... 2428557/concise-way-to-getattr-and-use-it-if-not-none-in-python...

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

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