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html - How to move placeholder to top on focus AND while typing?

I want the placeholder to move to the top when the textbox is on focus and also while the user is typing ... that makes anything easier! Thanks. See Question&Answers more detail:os...

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

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wpf - How to make all controls resize accordingly proportionally when window is maximized?

When I clicked on the maximize button the window is maximized but the controls are not resized proportionally. What is ... > </Grid> </Window> See Question&Answers more detail:os...

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

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How to correctly use PagedResourcesAssembler from Spring Data?

I'm using Spring 4.0.0.RELEASE, Spring Data Commons 1.7.0.M1, Spring Hateoas 0.8.0.RELEASE My ... pagedAssembler.toResource(u, assembler); } See Question&Answers more detail:os...

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

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Python data structure sort list alphabetically

I am a bit confused regarding data structure in python; (),[], and {}. I am trying to sort a simple ... how to sort the words alphabetically? See Question&Answers more detail:os...

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

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unit testing - How does mockito when() invocation work?

Given the following Mockito statement: when(mock.method()).thenReturn(someValue); How does Mockito go about ... this is technically done. See Question&Answers more detail:os...

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

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Factory pattern in C#: How to ensure an object instance can only be created by a factory class?

Recently I've been thinking about securing some of my code. I'm curious how one could make sure an object ... the community think about this? See Question&Answers more detail:os...

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

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ruby - Why can't I install Rails on Lion using RVM?

I'm running into issues trying to install Rails on OS X Lion using RVM. So far, I have done the ... /github.com/carlhuda/bundler/issues/1058 See Question&Answers more detail:os...

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

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rest - Firefox Add-on RESTclient - How to input POST parameters?

I've installed Firefox RESTclient add-on but , I'm having hard time figuring out how to pass POST parameters. Is ... REST API on Mac OS X ? See Question&Answers more detail:os...

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

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recursion - Python: using a recursive algorithm as a generator

Recently I wrote a function to generate certain sequences with nontrivial constraints. The problem came with a ... with an iterative one? See Question&Answers more detail:os...

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

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language agnostic - What's the best name for a non-mutating "add" method on an immutable collection?

Sorry for the waffly title - if I could come up with a concise title, I wouldn't have to ask the ... self-descriptive as ImmutableList<T> :) See Question&Answers more detail:os...

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

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spring - Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured

I am working on a Spring Boot Batch example with MongoDB and I have already started the mongod server. When I ... 52534 (0 connections now open) See Question&Answers more detail:os...

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

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ios - Usage of protocols as array types and function parameters in swift

I want to create a class that can store objects conforming to a certain protocol. The objects should be stored ... .removeAtIndex(index) } } } See Question&Answers more detail:os...

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

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Are there any viable alternatives to the GOF Singleton Pattern?

Let's face it. The Singleton Pattern is highly controversial topic with hordes programmers on both sides of the fence. ... , what could we do?" See Question&Answers more detail:os...

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

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Storing code snippets in eclipse

I'm a recent semi-convert to Eclipse after 20 years of using vi and gvim. One of the things I miss ... you manage code snippets in Eclipse? See Question&Answers more detail:os...

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

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hadoop - How to access s3a:// files from Apache Spark?

Hadoop 2.6 doesn't support s3a out of the box, so I've tried a series of solutions and fixes, ... Has anyone successfully make both work? See Question&Answers more detail:os...

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

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r - Return data subset time frames within another timeframes?

There are very nifty ways of subsetting xts objects. For example, one can get all the data for all years ... any other subsetting tricks exist? See Question&Answers more detail:os...

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

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macos - Cocoa Keyboard Shortcuts in Dialog without an Edit Menu

I have an LSUIElement application that displays a menubar status item. The application can display a dialog window ... Working in Modal Window See Question&Answers more detail:os...

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

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Where would you place your SQLite database file in an iPhone app?

When I initially create an SQLite database file with pre-inserted datasets for my application, I would have to ... s not much iPhone related. See Question&Answers more detail:os...

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

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powershell - How to get the current directory of the cmdlet being executed

This should be a simple task, but I have seen several attempts on how to get the path to the directory ... with how PowerShell is configured? See Question&Answers more detail:os...

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

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angular - Typescript sleep

I'm developing a website in Angular 2 using Typescript and I was wondering if there was a way to implement ... it in Typescript. Many thanks, See Question&Answers more detail:os...

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

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sql - Why is iterating through a large Django QuerySet consuming massive amounts of memory?

The table in question contains roughly ten million rows. for event in Event.objects.all(): print event This causes ... I'm using PostgreSQL.) See Question&Answers more detail:os...

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

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android - Live character count for EditText

I was wondering what the best way to do a live character count of an edit-text box is in Android. I was ... direction I'd appreciate it a lot. See Question&Answers more detail:os...

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

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node.js - Why is this HTTP request not working on AWS Lambda?

I'm getting started with AWS Lambda and I'm trying to request an external service from my handler function. ... not execute the HTTP request? See Question&Answers more detail:os...

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

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c++ - Function declaration inside or outside the class

I am a JAVA developer who is trying to learn C++, but I don't really know what the best practice is for ... second one can be less readable... See Question&Answers more detail:os...

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

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security - https URL with token parameter : how secure is it?

On our site, we provide to users a simulation based on their private information (given through a form). We ... parameters in a https request? See Question&Answers more detail:os...

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

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c++ - Why would I prefer using vector to deque

Since they are both contiguous memory containers; feature wise, deque has almost everything vector has but more, since ... vector to std::deque? See Question&Answers more detail:os...

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

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php - What is the advantage of using try {} catch {} versus if {} else {}

I am switching from plain mysql in php to PDO and I have noticed that the common way to test for errors is ... connect, prepare, execute, etc.)? See Question&Answers more detail:os...

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

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gcc - How do I set up CLion to compile and run?

I just downloaded CLion from https://www.jetbrains.com/ because I just love the rest of their products. However, ... it work. Can anyone advise? See Question&Answers more detail:os...

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

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