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clojure - Why does using keywords or symbols as functions to lookup values from maps work?

Quoting from Joy of Clojure, section 4.3.1-- Because keywords are self-evaluating and provide fast equality checks, ... the end of the list? 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# - Encoding.GetEncoding can't work in UWP app

I need to encode some text files for native characters. In my Windows 8.1 Store app, I could use ... .RegisterProvider method, any ideas? 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 - How can I calculate the difference between two times that are in 24 hour format?

In JavaScript, how can I calculate the difference between two times that are in 24 hour format? Example: Get how many ... </select> <p></p> 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 - adding non-code resources to jar file using Ant

I am in the process of packaging my java application into a jar file. I am using ant and eclipse. I need to ... well? Many thanks for your time! 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 - Google Map error: InvalidKeyOrUnauthorizedURLMapError

I am developing in JavaScript/HTML/CSS an app that uses Google Maps. I am getting the following alert dialog ... enabled 11 Google Maps APIs. See Question&Answers more detail:os...

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

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662 views

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database - Personal names in a global application: What to store

Storing personal names in a structured way seems quite difficult when it comes to an application which is used by ... have a complex structure. See Question&Answers more detail:os...

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

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objective c - How do I get word wrap information with the new iOS 7 APIs?

I noticed that iOS 7 introduces new classes related to text layout such as NSLayoutManager, NSTextStorage, and ... can use them instead. 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 - Undefined symbols for architecture i386: "_OBJC_CLASS_$_ZipException", referenced from: error

I'm using a few '.o' files in my project and while compiling it shows the following error, error: ... linking something? Thanks in advance See Question&Answers more detail:os...

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

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string - parsing math expression in python and solving to find an answer

I am quite new to programming. This is in relation to python. So the idea is to take an expression such as ... . I can also use functions. 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 6.x open command line on jailbreak

Before iOS 6.x, I used open package_id to open a app from command line on a iOS device. On iOS 6.x if ... fix for the open command from BigBoss? 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 boot - Stop consume message for Stream listener

I am looking for a way to stop consume messages with stream listener. @StreamListener(MBinding.M_INPUT) public void ... anyone who know 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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sapui5 - Live Update the Number of Items

I have a requirement where I need to live update the number of list items to Page's sub-header. I want use ... of list item should live update. 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 - Get orders total purchases amount for the day in Woocommerce

For Woocommerce, I wrote code below, trying to get orders total purchases amount for today: function ... amount for the day? See Question&Answers more detail:os...

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

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html - Angular 6: saving data to local storage

I have a data table which display data from external API, I want the number of items /element on the ... welcomed, newbie trying new stuff. 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 3 urllib produces TypeError: POST data should be bytes or an iterable of bytes. It cannot be of type str

I am trying to convert working Python 2.7 code into Python 3 code and I am receiving a type error from the ... work. Could you please help me? 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 - Getting "Can't find the drive. The drive called 'IIS' does not exist."

I wrote a PowerShell script to deploy IIS Website automatically, but when I pass parameters to the script I get ... is not be recognized ? See Question&Answers more detail:os...

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

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795 views

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SQL server identity column values start at 0 instead of 1

I've got a strange situation with some tables in my database starting its IDs from 0, even though TABLE ... Express 2005 with Advanced Services) See Question&Answers more detail:os...

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

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400 views

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javascript - Why is `throw` invalid in an ES6 arrow function?

I'm just looking for a reason as to why this is invalid: () => throw 42; I know I can get around it via: () => {throw 42}; See Question&Answers more detail:os...

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

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linux - How to fix "[SEVERE]: bind() failed: Cannot assign requested address (99)" while starting chromedriver

I downloaded the latest version of chromedriver in Centos 7 platform: https://chromedriver.storage.googleapis.com/index. ... can I solve 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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data access layer - Nullable values in C++

I'm creating a database access layer in native C++, and I'm looking at ways to support NULL values. Here ... How do others solve this problem? See Question&Answers more detail:os...

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

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487 views

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android - OnItemClickListener doesn't work with ListView item containing button

I have ListView with custom Adapter which supplies View to ListView in this way: public View getView(int position, ... ideas how to overcome? 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 - Can I get better performance using a JOIN or using EXISTS?

I have two tables Institutions and Results and I want to see if there are any results for institutions that way ... EXISTS? Thank you, -Nimesh See Question&Answers more detail:os...

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

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359 views

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Maximum number of enum elements in Java

What is the maximum number of elements allowed in an enum in Java? I wanted to find out the maximum number of ... allowed... so the question.. See Question&Answers more detail:os...

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

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364 views

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java - Behavior of String literals is confusing

The behavior of String literals is very confusing in the code below. I can understand line 1, line 2 ... appreciate a complete explanation. See Question&Answers more detail:os...

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

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419 views

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What's the quickest way to compare strings in Java?

What's the quickest to compare two strings in Java? Is there something faster than equals? EDIT: I can not help ... be long up to 30 characters See Question&Answers more detail:os...

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

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603 views

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Python : Assert that variable is instance method?

How can one check if a variable is an instance method or not? I'm using python 2.5. Something like ... assert is_instance_method(Test().method) See Question&Answers more detail:os...

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

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678 views

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android - change font for editText hint

Is it possible to change the font for the hint displayed in the EditText field? I want to set the font in the xml itself. See Question&Answers more detail:os...

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

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608 views

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Remove large padding after hamburger (menu) icon in Android Toolbar?

Here is a picture of the large padding gap after the menu icon: This occurred after not working on my ... spacing got doubled or something. See Question&Answers more detail:os...

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

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