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c# - How to use the ternary operator inside an interpolated string?

I'm confused as to why this code won't compile: var result = $"{fieldName}{isDescending ? " desc" : string.Empty ... .Empty; var result = $"{fieldName}{desc}"; Question&Answers:os...

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

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441 views

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c# - Compare equality between two objects in NUnit

I'm trying to assert that one object is "equal" to another object. The objects are just instances of a ... that the contents of two collections are identical. Question&Answers:os...

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

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384 views

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ruby - Using Rails serialize to save hash to database

I'm try to save a hash mapping ids to a number of attempts in my rails app. My migration to the database to ... The output is false. What's going wrong here? Question&Answers:os...

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

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c# - How can I find a specific element in a List<T>?

My application uses a list like this: List<MyClass> list = new List<MyClass>(); Using the Add method, another ... I don't know if this would work here?! Question&Answers:os...

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

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android - show icon in actionbar/toolbar with AppCompat-v7 21

I tried these - but still do not see the icon like before: getSupportActionBar().setLogo(R.drawable.ic_launcher); ... is there a better way to do so? Question&Answers:os...

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

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1 answer

Android notification is not showing

I need a program that will add a notification on Android. And when someone clicks on the notification, it ... it's selected notificationManager.notify(0, n); Question&Answers:os...

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

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cakephp - Fat models, skinny controllers and the MVC design pattern

I just read a blog post that explains MVC with a banking analogy. I have a few months of experience with web ... great, but I'm sure anything MVC will suffice. Question&Answers:os...

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

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263 views

1 answer

how to zip a folder itself using java

Suppose I have the following directory structure. D: eportsjanuary Inside january there are suppose two excel files say ... other libraries. Thanks a lot... Question&Answers:os...

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

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250 views

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css - Right to Left support for Twitter Bootstrap 3

There have been questions about this before: Twitter Bootstrap CSS that support from RTL languages But all the answers ... . Does anybody know a fix for that? Question&Answers:os...

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

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java - How to parse a JSON string to an array using Jackson

I have a String with the following value: [ { "key1": "value11", "key2": "value12" }, { "key1": " ... is the simplest way to do it using Jackson ObjectMapper? Question&Answers:os...

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

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98 views

1 answer

java - Load properties file in JAR?

I'm having trouble when one of the jars that my web app depends on tries to load a properties file from within the jar ... on jar, I don't know how to fix this. Question&Answers:os...

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

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140 views

1 answer

android - Set Focus on EditText

I have an EditText-Field and set an OnFocusChangeListener for it. When it has lost focus, a method is called, which ... ", Toast.LENGTH_SHORT).show(); } } } Question&Answers:os...

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

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197 views

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How to pass event as argument to an inline event handler in JavaScript?

// this e works document.getElementById("p").oncontextmenu = function(e) { e = e || window.event; var ... a solution for passing event to inline event hander. Question&Answers:os...

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

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1 answer

ios - Array from dictionary keys in swift

Trying to fill an array with strings from the keys in a dictionary in swift. var componentArray: [String] let dict ... : 'String' is not convertible to [String] Question&Answers:os...

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

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java - What is the "default" implementation of method defined in an Interface?

In the Collection Interface I found a method named removeIf() that contains its implementation. default boolean ... default keyword and how does it work? Question&Answers:os...

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

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1.4k views

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pdfkit - How to avoid page break inside table row for wkhtmltopdf

I am generating pdf report from html page with one table. I am using wkhtmltopdf for the purpose. when pdf is generated it ... in tr tag. I want to avoid it . Question&Answers:os...

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

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78 views

1 answer

No ways to have class-based objects in javascript?

The javascript prototype-based object-oriented programming style is interesting, but there are a lot of situations where ... the issue I wanted to discuss here. Question&Answers:os...

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

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118 views

1 answer

android - react-native: command not found

I am getting -bash: react-native: command not found error while creating react-native project. Below are the ... again but still i am facing same issue. Question&Answers:os...

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

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484 views

1 answer

jquery - Set width of a "Position: fixed" div relative to parent div

I'm trying to give a div (position: fixed) the width of 100% (relating to it's parent div). But I've got ... is just an example so that doesn't really matter. Question&Answers:os...

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

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780 views

1 answer

contextmenu - Android: How to enable/disable option menu item on button click?

I can easily do it when I am using onCreateOptionsMenu or onOptionsItemSelected methods. But I have a button ... it should enable/disable context menu items. Question&Answers:os...

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

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518 views

1 answer

c++ - ":" (colon) in C struct - what does it mean?

This question already has answers here: Question&Answers:os...

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

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219 views

1 answer

javascript - Extending AngularJs Directive

I'd like to make a minor modification to a 3rd party directive (specifically Angular UI Bootstrap). I ... this directive separately from this bower component? Question&Answers:os...

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

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585 views

1 answer

arrays - Why are Objects not Iterable in JavaScript?

Why are objects not iterable by default? I see questions all the time related to iterating objects, the common solution ... console.log([...example]); // error Question&Answers:os...

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

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183 views

1 answer

ios - Set the maximum character length of a UITextField in Swift

I know there are other topics on this but I can't seem to find out how to implement it. I'm trying ... " should I swap out for my custom named UITextField Question&Answers:os...

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

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1.6k views

1 answer

django - How do you run a worker with AWS Elastic Beanstalk?

I am launching a Django application on AWS Elastic Beanstalk. I'd like to run a background task or worker ... celery worker --loglevel=info" leader_only: true Question&Answers:os...

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

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463 views

1 answer

datetime - How can I create a Java 8 LocalDate from a long Epoch time in Milliseconds?

I have an external API that returns me dates as longs, represented as milliseconds since the beginning of the ... to a LocalDate in my current local timezone. Question&Answers:os...

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

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410 views

1 answer

android - convert ArrayList<MyCustomClass> to JSONArray

I have an ArrayList that I use within an ArrayAdapter for a ListView. I need to take the items in the list ... category 3"}] Hope this helps someone some day! Question&Answers:os...

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

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206 views

1 answer

python - Rotation of 3D vector?

I have two vectors as Python lists and an angle. E.g.: v = [3,5,0] axis = [4,4,1] theta = 1. ... the axis vector is pointing. This is called the right hand rule Question&Answers:os...

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

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