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jquery - <select> only shows first char of selected option

I have a standard select box which I'm populating using jquery by appending options, but for some reason IE9 only ... have a solution at least. See Question&Answers more detail:os...

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

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javascript - React Hooks useState+useEffect+event gives stale state

I'm trying to use an event emitter with React useEffect and useState, but it always gets the initial state instead ... ); } export default App; See Question&Answers more detail:os...

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

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381 views

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ios - Calculate the color at a given point on a gradient between two colors?

So this is essentially the method I would like to write (in Objective-C/Cocoa, using UIColors, but I'm ... a certain 'location' between them? See Question&Answers more detail:os...

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

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jquery - Pop Images like Google Images

Is there any jQuery plugin or CSS technique to achieve this pop effect like google images? 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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java - Bold words in a string of strings.xml in Android

I have a long text in one of the strings at strings.xml. I want to make bold and change the color of some words in that text. How can I do it? See Question&Answers more detail:os...

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

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285 views

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How to combine two lists in R

I have two lists: l1 = list(2, 3) l2 = list(4) I want a third list: list(2, 3, 4). How can I do it in simple ... (2, 4), I want list(2, 3, 4). See Question&Answers more detail:os...

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

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css - Bootstrap table striped: How do I change the stripe background colour?

With Bootstrap class table-striped, every other row in my table has a background colour equal to #F9F9F9. How can I change this colour? 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 - How to reset anaconda root environment

How do I reset the root environment of anaconda? There has to be a simple conda reset command that does this. ... if I install anaconda again. 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 6 Migration -.angular-cli.json to angular.json

I've upgraded my project to Angular 6, and everything went fine except the conversion of .angular-cli.json ... do it automatically / manually? See Question&Answers more detail:os...

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

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663 views

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reactjs - SyntaxError with Jest and React and importing CSS files

I am trying to get my first Jest Test to pass with React and Babel. I am getting the following error: SyntaxError: ... }, So what am I missing? See Question&Answers more detail:os...

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

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646 views

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stdvector - How to compare two vectors for equality element by element in C++?

Is there any way to compare two vectors? if (vector1 == vector2) DoSomething(); Note: Currently, these ... sorted and contain integer values. See Question&Answers more detail:os...

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

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database - CodeIgniter - return only one row?

At the moment if I am doing a query on the database that should only return one row, using: ...query ... directly. e.g. $query->campaign_id; See Question&Answers more detail:os...

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

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342 views

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Objective C to Swift header file with multiple targets

I'm successfully calling my Swift classes from Objective C (for target 'MyApp') via the import statement: #import " ... is there a better way? See Question&Answers more detail:os...

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

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417 views

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iphone - Objective C calling method dynamically with a string

Im just wondering whether there is a way to call a method where i build the name of the method on the fly ... with a string. Any ideas? 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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Redirect to new Page in AngularJS using $location

I am testing with the following AngularJS $location. I don't what's the problem with this. Just want to check if the ... /www.google.com'; } }); See Question&Answers more detail:os...

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

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450 views

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MongoDB {aggregation $match} vs {find} speed

I have a mongoDB collection with millions of rows and I'm trying to optimize my queries. I'm currently using the ... , "itemId" : "5" } See Question&Answers more detail:os...

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

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843 views

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file io - C++ ifstream failbit and badbit

In case of ifstream in C++, under what conditions are failbit and badbit flags set ? See Question&Answers more detail:os...

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

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484 views

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push - Firebase: how to generate a unique numeric ID for key?

I need numeric IDs for human readability. How do I get it in Firebase? I want numeric ID for keys, e.g. " ... me no, I can accept that answer. See Question&Answers more detail:os...

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

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492 views

1 answer

Java URLConnection Timeout

I am trying to parse an XML file from an HTTP URL. I want to configure a timeout of 15 ... catching the SocketTimeoutException. Thanks Chris See Question&Answers more detail:os...

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

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393 views

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c# - How to use caching in ASP.NET Web API?

I am using ASP.NET MVC 4 with WEB API I have the following action, in the action shown below, my service method ... how do I get this working ? See Question&Answers more detail:os...

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

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331 views

1 answer

Get Python class object from class name string in the same module

I have a class class Foo(): def some_method(): pass And another class in the same module: class Bar(): def ... that if there's an easier way. See Question&Answers more detail:os...

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

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618 views

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ruby - Checking if a variable is defined in SASS

AS the title says I am trying to check whether a variable is defined in SASS. (I am using compass if that ... if this is possible for the future See Question&Answers more detail:os...

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

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639 views

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svn - Subversion: ignore modifications to a file locally on one client only

Is it possible to ignore changes to a file in subversion locally on one client only, without propagating the ... keep the make file there. See Question&Answers more detail:os...

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

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1.0k views

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jsf - List of <p:ajax> events

I've searched the Internet and I cannot find a list of <p:ajax> events. Can anyone provide a complete ... an onblur event or something similar. See Question&Answers more detail:os...

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

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592 views

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android - CoordinatorLayout using the ViewPager's RecyclerView

I am using the view CoordinatorLayout from android.support.design. I want to attach the app:layout_behavior to ... at Android Developers blog. See Question&Answers more detail:os...

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

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395 views

1 answer

python - Find unique values in a Pandas dataframe, irrespective of row or column location

I have a Pandas dataframe and I want to find all the unique values in that dataframe...irrespective of row/ ... Is there a predefined function? See Question&Answers more detail:os...

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

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357 views

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python - Why does this take so long to match? Is it a bug?

I need to match certain URLs in web application, i.e. /123,456,789, and wrote this regex to match the pattern: ... ,523523/') Is this a bug? See Question&Answers more detail:os...

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

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580 views

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ios - Why can't JavaScript .play() audio files on iPhone safari?

I've got a JavaScript web app working that plays some audio periodically like this: var SOUND_SUCCESS = new Audio(' ... Is this still the case? See Question&Answers more detail:os...

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

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