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What are all the common ways to read a file in Ruby?

What are all the common ways to read a file in Ruby? For instance, here is one method: fileObj = File. ... . What are the benefits/drawbacks of each approach? Question&Answers:os...

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

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77 views

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How can I run MongoDB as a Windows service?

How can I set up MongoDB so it can run as a Windows service? Question&Answers:os...

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

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392 views

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angular - What's the difference between @ViewChild and @ContentChild?

Angular 2 provides @ViewChild, @ViewChildren, @ContentChild and @ContentChildren decorators for querying a component's descendant ... two and the latter two? Question&Answers:os...

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

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70 views

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Catching an exception while using a Python 'with' statement

To my shame, I can't figure out how to handle exception for python 'with' statement. If I have a code: ... failure inside 'with' statement in a Pythonic way? Question&Answers:os...

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

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dictionary - Converting Python dict to kwargs?

I want to build a query for sunburnt(solr interface) using class inheritance and therefore adding key - value pairs ... ) into keyword arguments (type='Event')? Question&Answers:os...

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

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323 views

1 answer

Add native files from NuGet package to project output directory

I'm trying to create NuGet package for a .Net assembly which does pinvoke to a native win32 dll. I need to ... can I access the package content for copying it? Question&Answers:os...

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

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How to export revision history from mercurial or git to cvs?

I'm going to be working with other people on code from a project that uses cvs. We want to use a ... distributed vcs if it could make the export easier. Question&Answers:os...

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

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133 views

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How to find my realm file?

I have created a DB by realm and I am not able to find the file as my OS (Yosemite) dont have a ... to run in the browser? Cross posted from google groups Question&Answers:os...

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

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445 views

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xml - What's "tools:context" in Android layout files?

Starting with a recent new version of ADT, I've noticed this new attribute on the layout XML files, for example ... ? Is it usable for ListView items etc.? Question&Answers:os...

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

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node.js - How to change bower's default components folder?

I'm making a new project that uses bower from twitter. I created a component.json to maintain all my dependency ... twitter/bower/pull/94 but it doesn't work. Question&Answers:os...

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

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354 views

1 answer

algorithm - Heap vs Binary Search Tree (BST)

What is the difference between a heap and BST? When to use a heap and when to use a BST? If you want to ... in a sorted fashion, is BST better over heap? Question&Answers:os...

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

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387 views

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objective c - Xcode intellisense meaning of letters in colored boxes like f,T,C,M,P,C,K,# etc

Recently, I have started using Xcode 4 for developing iOS apps. In Xcode intellisense's autocomplete box, there are ... me if I am wrong. Please suggest. Question&Answers:os...

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

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159 views

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html - What do < and > stand for?

I know that the entities < and > are used for < and >, but I am curious what these names stand for. Does ... like "Left tag" or is it just a code? Question&Answers:os...

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

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229 views

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python - In pytest, what is the use of conftest.py files?

I recently discovered pytest. It seems great. However, I feel the documentation could be better. I'm trying to understand ... file(s) in a py.test test suite? Question&Answers:os...

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

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424 views

1 answer

bash - Running multiple commands with xargs

cat a.txt | xargs -I % echo % In the example above, xargs takes echo % as the command argument. But in ... because it is complex. Is there a better solution? Question&Answers:os...

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

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121 views

1 answer

How to initialize List<String> object in Java?

I can not initialize a List as in the following code: List<String> supplierNames = new List<String>(); ... <String> How can I instantiate List<String>? Question&Answers:os...

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

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274 views

1 answer

Null or default comparison of generic argument in C#

I have a generic method defined like this: public void MyMethod<T>(T myArgument) The first thing I want ... to support both references types and value types. Question&Answers:os...

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

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1.9k views

1 answer

laravel - Eloquent Collection: Counting and Detect Empty

This may be a trivial question but I am wondering if Laravel recommends a certain way to check whether an ... actually cover all cases, including empty result? Question&Answers:os...

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

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269 views

1 answer

android - Background ListView becomes black when scrolling

I have created a specific List which exists out of the following elements to create a scrollable list with every row ... is happening, and how to solve this? Question&Answers:os...

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

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289 views

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c# - How do I get a human-readable file size in bytes abbreviation using .NET?

How do I get a human-readable file size in bytes abbreviation using .NET? Example: Take input 7,326,629 and display 6.98 MB Question&Answers:os...

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

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309 views

1 answer

python - pyplot axes labels for subplots

I have the following plot: import matplotlib.pyplot as plt fig2 = plt.figure() ax3 = fig2.add_subplot(2,1,1) ... a few things but none of them worked right Question&Answers:os...

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

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504 views

1 answer

algorithm - How to detect the BPM of a song in php

Closed. This question needs to be more focused. It is not currently accepting answers. Question&Answers:os...

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

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373 views

1 answer

How to obtain Signing certificate fingerprint (SHA1) for OAuth 2.0 on Android?

I'm trying to register my android app following the steps in https://developers.google.com/console/help/ ... Can I use a debug certificate first? Question&Answers:os...

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

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251 views

1 answer

macos - How can I start PostgreSQL server on Mac OS X?

Final update: I had forgotten to run the initdb command. By running this command ps auxwww | grep postgres I see ... the same "Is the server running?" message. Question&Answers:os...

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

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132 views

1 answer

How to remove remote origin from a Git repository

I just did git init to initialize my folder as Git repository and then added a remote repository using git remote add ... origin new-URL. How can I do it? Question&Answers:os...

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

0 votes

355 views

1 answer

git - How do I diff the same file between two different commits on the same branch?

In Git, how could I compare the same file between two different commits (not contiguous) on the same branch (master ... Server (TFS). Is it possible in Git? Question&Answers:os...

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

0 votes

201 views

1 answer

What's the difference of name scope and a variable scope in tensorflow?

What's the differences between these functions? tf.variable_op_scope(values, name, default_name, initializer=None) ... present only a few basic examples. Question&Answers:os...

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

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676 views

1 answer

rotation - Rotating videos with FFmpeg

I have been trying to figure out how to rotate videos with FFmpeg. I am working with iPhone videos taken in ... as well. Where have the rotate options gone? Question&Answers:os...

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

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