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javascript - shuffle HTML list element order

I have a list: <ul> <li>milk</li> <li>butter</li> <li>eggs</li> <li>orange juice</li> <li> ... ul> Using javascript how can I reorder the list items randomly? 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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javascript - What does Asynchronous means in Ajax?

What does Asynchronous means in Ajax? and also how does Ajax know when to pull data without server polling? Question&Answers:os...

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

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221 views

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c# - How can I make my product as a trial version for 30 days?

I have created my product and also generated license key for that but I want to ask that key after 30 days. I ... system date and allow only 30 days of trial? Question&Answers:os...

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

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130 views

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How to sum up an array of integers in C#

Is there a better shorter way than iterating over the array? int[] arr = new int[] { 1, 2, 3 }; int sum = ... There's String.Join - what the heck about int[]?". Question&Answers:os...

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

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join - When to use STRAIGHT_JOIN with MySQL

I just had a fairly complex query I was working with and it was taking 8 seconds to run. EXPLAIN was ... not use STRAIGHT_JOIN if you are writing good queries? Question&Answers:os...

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

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573 views

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javascript - 'await Unexpected identifier' on Node.js 7.5

I am experimenting with the await keyword in Node.js. I have this test script: "use strict"; ... com/glynnbird/58a2eb23aad2bb0014ea614b What am I doing wrong? Question&Answers:os...

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

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How can I check if a string only contains letters in Python?

I'm trying to check if a string only contains letters, not digits or symbols. For example: >>> only_letters("hello") True >>> only_letters("he7lo") False Question&Answers:os...

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

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iphone - Error opening iOS Simulator with iOS 8 beta version: "Unable to boot the iOS Simulator"

I recently installed the beta of Xcode Version 6 in OS X Mavericks, with which comes the iOS simulator for iOS 8. I ... because is only for OS X 10.10? Thanks. Question&Answers:os...

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

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594 views

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assembly - "enter" vs "push ebp; mov ebp, esp; sub esp, imm" and "leave" vs "mov esp, ebp; pop ebp"

What is the difference between the enter and push ebp mov ebp, esp sub esp, imm instructions? Is there a ... leave and mov esp, ebp pop ebp instructions. Question&Answers:os...

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

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Is this the best way to rewrite the content of a file in Java?

I want to rewrite the contents of a file. What I have thought of so far is this: Save the file name ... delete and create files, but simply change the content? Question&Answers:os...

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

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219 views

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objective c - CoreData relationship fault?

I have an Order which has a "to-many" relationship with Units. When I try to log the units (NSSet) in ... it printing the entire object when I only want units? Question&Answers:os...

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

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c++ - Calling virtual function from destructor

Is this safe ? class Derived: public PublicBase, private PrivateBase { ... ~Derived() { FunctionCall(); } ... ::FunctionCall is called. Is undefined behavior ? Question&Answers:os...

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

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c - How are variable arguments implemented in gcc?

int max(int n, ...) I am using cdecl calling convention where the caller cleans up the variable after the ... array of arguments as the second argument to max? Question&Answers:os...

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

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1.2k views

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image - Render MATLAB figure in memory

Are there any alternatives to using getframe and saveas for saving the contents of a figure to a raster image ... an arbitrary axes content to a raster image? Question&Answers:os...

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

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533 views

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sql server - CTE to get all children (descendants) of a parent

I've this problem that's giving me a headache... Say, i've got a table with some thousands of rows and ... 's a Sqlfiddle in case someone could help, thanks! 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

java - Increase HTTP Post maxPostSize in Spring Boot

I've got a fairly simple Spring Boot web application, I have a single HTML page with a form with enctype= ... to create customized beans or mess with xml files. Question&Answers:os...

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

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503 views

1 answer

C++ signal to QML slot in Qt

I want to send a Signal from C++ to a Slot in my QML File. I already got it ... :connect: No such slot QDeclarativeRectangle_QML_2::updateViewWithItem(QString) Question&Answers:os...

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

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201 views

1 answer

Can I declare variables inside an Objective-C switch statement?

I think I'm going blind, because I can't figure out where the syntax error is in this code: if( cell == ... for such a basic question, but what am I missing? Question&Answers:os...

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

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458 views

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rgb - Can I force jQuery.css("backgroundColor") returns on hexadecimal format?

I have an element like this: <p>My text with a <strong class="highlighted">sample highlight</strong>. ... jQuery return the value already on hexadecimal format. Question&Answers:os...

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

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automation - How to find the UpgradeCode and ProductCode of an installed application in Windows 7

I have an application installed on my machine. I also have its source code but somehow the ... UpgradeCode and ProductCode of an installed application? Question&Answers:os...

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

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173 views

1 answer

What issues can I expect compiling C code with a C++ compiler?

If you take an existing C code base and compile it with a C++ compiler, what sort of issues can you expect ... of the more natural approach C++ would provide. Question&Answers: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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firefox - Custom Cursor Image CSS

I have a number of heroshot images, that have a modal popup when clicked. I'm trying to get my cursor to turn ... EDIT: It works in Safari, but not in Firefox. Question&Answers:os...

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

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499 views

1 answer

silverlight - Binding to ActualWidth does not work

In a Silverlight 3.0 application I'm attempting to create a rectangle in a canvas and have it stretch the whole ... StackPanel> </Grid> </Border> </UserControl> Question&Answers:os...

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

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141 views

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Variable naming conventions in Java?

In PHP, we (at least the good programmers) always start general variable names with a lower-case letter, but class ... lower case as I've read in other places? 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

javascript - Google Chrome "window.open" workaround?

I have been working on a web app and for part of it I need to open a new window. I have this working on ... window.focus) { newwindow.focus() } return false; } Question&Answers:os...

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

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281 views

1 answer

javascript - SCRIPT438: Object doesn't support property or method IE

I have an option in my application where users can deactivate their profiles. Only admin can activate them again. I have ... , null, ex); } return existEmbg; } Question&Answers:os...

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

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234 views

1 answer

java - Why isn't a qualified static final variable allowed in a static initialization block?

Case 1 class Program { static final int var; static { Program.var = 8; // Compilation error } public static ... } Why does Case 1 cause a compilation error? Question&Answers:os...

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

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1.8k views

1 answer

intellij idea - Adding Jar files to IntellijIdea classpath

I have created a new Intellij project. But I can't use the third party jars in my project. I have the ... tried from Project Structure but can't configure it. Question&Answers:os...

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

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