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python - Check if a row in one data frame exist in another data frame

I have a data frame A like this: And another data frame B which looks like this: I want to add a column 'Exist' to ... /check-if-a-row-in-one-data-frame-exist-in-another-data-frame...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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117 views

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node.js - What is the difference between Socket.IO and Firebase?

I watched a codeschool tutorial on Node.js and they imitated a chat server using Socket.IO in their tutorial. ... /28676586/what-is-the-difference-between-socket-io-and-firebase...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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160 views

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Julia (Julia-lang) Performance Compared to Fortran and Python

I adapted a simple program to compute and plot the movement vortices of to Julia to test the language, I ... /20613817/julia-julia-lang-performance-compared-to-fortran-and-python...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How to enforce same nuget package version across multiple c# projects?

I have a bunch of small C# projects which use a couple of NuGet packages. I'd like to be able to ... how-to-enforce-same-nuget-package-version-across-multiple-c-sharp-projects...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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374 views

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sql server - The schema update is terminating because data loss might occur

I keep bumping into this error that is usually caused by some mistake I have made while building an application ... /the-schema-update-is-terminating-because-data-loss-might-occur...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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224 views

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macos - I can't find my Docker image after building it

I'm new to Docker, so please allow me to describe the steps that I did. I'm using Docker (not Docker ... .com/questions/38464549/i-cant-find-my-docker-image-after-building-it...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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627 views

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postgresql - Why command dt gives - no relations found?

I have created a database in postgres. It has 3 empty tables. The table has user tom as its Superuser ... .com/questions/40865564/why-command-dt-gives-no-relations-found...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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463 views

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android - How to integrate OpenStreetMap into a react-native project?

I am trying to integrate OpenStreetMap into a React Native project. But I can't find any library or ... /48885200/how-to-integrate-openstreetmap-into-a-react-native-project...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - How to use UIAutomation on a Today extension widget?

I am trying to use UIAutomation for testing an iOS 8 Today extension widget. I can change the target to ... questions/26415752/how-to-use-uiautomation-on-a-today-extension-widget...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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390 views

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Convert a 2D JavaScript array to a 1D array

(This question already has answers here): question from:https://stackoverflow.com/questions/14824283/convert-a-2d-javascript-array-to-a-1d-array...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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522 views

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api - Base64 Authentication Python

I'm following an api and I need to use a Base64 authentication of my User Id and password. 'User ... from:https://stackoverflow.com/questions/18139093/base64-authentication-python...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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407 views

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knitr - Conditionally display a block of text in R Markdown

I am using knitr to parse an R Markdown document . Is there a way to conditionally display a block of ... questions/25407102/conditionally-display-a-block-of-text-in-r-markdown...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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BASE64 to image angular 2

I'm trying to show an image get from a remote server with angular 2. In my component I have an object ... :https://stackoverflow.com/questions/38812993/base64-to-image-angular-2...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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196 views

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javascript - Check FPS in JS?

(Closed). This question needs details or clarity. It is not currently accepting answers. question from:https://stackoverflow.com/questions/4787431/check-fps-in-js...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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700 views

1 answer

c# - OmniSharp.MSBuild.ProjectManager Attempted to update project that is not loaded:

I started to develop Asp.net Core web API with the VS code. But when I typing the code Intellisense/ ... -msbuild-projectmanager-attempted-to-update-project-that-is-not-loaded...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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150 views

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How to undo setting Elasticsearch Index to readonly?

So I just set one of my indices to readonly, and now want to delete it. To set it to readonly: ... .com/questions/34911181/how-to-undo-setting-elasticsearch-index-to-readonly...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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232 views

1 answer

node.js - "Cannot read property 'match' of undefined" during Npm install

I encountered error during building Jenkins Jenkins Log Task :api:processResources Task :api:classes Task :web: ... /cannot-read-property-match-of-undefined-during-npm-install...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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189 views

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Relative Strength Index in python pandas

I am new to pandas. What is the best way to calculate the relative strength part in the RSI ... /stackoverflow.com/questions/20526414/relative-strength-index-in-python-pandas...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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461 views

1 answer

amazon web services - How to create folder or key on s3 using AWS SDK for Node.js?

I'm using AWS SDK for Node.js to create a folder or key on s3. I searched on google, but I got nothing. Does anybody ... how-to-create-folder-or-key-on-s3-using-aws-sdk-for-node-js...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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82 views

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java - An instance of OnFlingListener already set in Recyclerview

I'm using a RecyclerView in my Android app. I've many cardviews in my RecyclerView, such that only ... questions/44043501/an-instance-of-onflinglistener-already-set-in-recyclerview...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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268 views

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Python Pandas GroupBy get list of groups

I have a line of code: g = x.groupby('Color') The colors are Red, Blue, Green, Yellow, Purple, ... ://stackoverflow.com/questions/28844535/python-pandas-groupby-get-list-of-groups...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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186 views

1 answer

c# - How to select top n rows from a datatable/dataview in ASP.NET

How to the select top n rows from a datatable/dataview in ASP.NET? Currently I am using the following code, passing ... to-select-top-n-rows-from-a-datatable-dataview-in-asp-net...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Django Python rest framework, No 'Access-Control-Allow-Origin' header is present on the requested resource in chrome, works in firefox

I have researched and read quite a few Stackoverflow posts on the same issue. None have resolved my issue. My ... -rest-framework-no-access-control-allow-origin-header-is-present...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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351 views

1 answer

How can I get access to a Django Model field verbose name dynamically?

I'd like to have access to one my model field verbose_name. I can get it by the field indice like this model. ... -can-i-get-access-to-a-django-model-field-verbose-name-dynamically...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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63 views

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How can I decode a SSL certificate using python?

How can I decode a pem-encoded (base64) certificate with Python? For example this here from github.com: ---- ... /questions/16899247/how-can-i-decode-a-ssl-certificate-using-python...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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109 views

1 answer

javascript - Check if variable holds File or Blob

Javascript has both File and Blob for file representation, and both are almost the same thing. Is there a way ... .com/questions/31525667/check-if-variable-holds-file-or-blob...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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638 views

1 answer

Eslint AirBNB with 4 spaces for indent

I am configuring eslint and am using the AirBNB style guide. I want to over-ride the indent (supposed to ... .com/questions/48902050/eslint-airbnb-with-4-spaces-for-indent...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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247 views

1 answer

sql server - Joining a list of values with table rows in SQL

Suppose I have a list of values, such as 1, 2, 3, 4, 5 and a table where some of those values exist in ... .com/questions/23377098/joining-a-list-of-values-with-table-rows-in-sql...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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