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oop - How can I get the classname from a static call in an extended PHP class?

I have two classes: Action and MyAction. The latter is declared as: class MyAction extends Action {/* some methods ... . Is there any possible way to do this? Question&Answers:os...

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

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javascript - Unexpected token ILLEGAL in webkit

// if the box is outside the window, move it to the end function checkEdge() { var windowsLeftEdge = $('#window' ... at line 22 character 2: Unexpected '?'." Question&Answers:os...

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

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104 views

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.net - With block equivalent in C#?

I know VB.Net and am trying to brush up on my C#. Is there a With block equivalent in C#? Thanks Question&Answers:os...

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

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excel - python xlrd unsupported format, or corrupt file.

My code: import xlrd wb = xlrd.open_workbook("Z:\Data\Locates\3.8 locates.xls") sh = wb.sheet_by_index(0) ... find the source of the issue would be great. Question&Answers:os...

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

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C: unary minus operator behavior with unsigned operands

I can't seem to find the relevant parts in the C standard fully defining the behavior of the unary minus operator ... ? Or is there something else I'm missing? Question&Answers:os...

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

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php - MongoDB Duplicate Documents even after adding unique key

I have created a collection and added a unique key like this db.user_services.createIndex({"uid":1 , "sid": ... it should update the rate field of the document Question&Answers:os...

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

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plot - How to display the frequency at the top of each factor in a barplot in R

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

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javascript - Add click event to iframe

I want to add a click event to an iframe. I used this example and got this: $(document).ready(function () { $( ... <input type="button" id="left" value="test"> Question&Answers:os...

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

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Using the Haversine Formula in Javascript

I'm trying to use the Haversine Distance Formula (as found here: http://www.movable-type.co.uk/scripts/latlong.html) ... to code this to get it to work? Thanks! Question&Answers:os...

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

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winapi - GetWindowRect returns a size including "invisible" borders

I'm working on an app that positions windows on the screen in a grid style. When Running this on Windows 10 ... to let me work with the real window coordinates? Question&Answers:os...

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

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Run VBA script from R

I have to manage a workflow involving R-scripts and VBA-code. I would like to run the process in R (where most ... possibility to manage in R such a work-flow? 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 detect only deleted, changed, and created files on a volume?

I need to know if there is an easy way of detecting only the files that were deleted, modified or created on an ... say changes since so and so time and date. Question&Answers:os...

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

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c# - LINQ Ring: Any() vs Contains() for Huge Collections

Given a huge collection of objects, is there a performance difference between the the following? Collection. ... (currentElement => currentElement == myElement) Question&Answers:os...

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

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c# - Why are properties without a setter not serialized

I have a serializable class and one of the properties in my class generates a Guid in the getter. The ... ones that the value for is generated internally? Question&Answers:os...

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

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ajax - How to enable cross-domain request on the server?

I have a json file hosted on my server. When I try to make an Ajax "GET" request to the json file, ... alert saying parseerror. Any idea what could be wrong? Question&Answers:os...

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

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166 views

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c# - Abstract classes vs Interfaces

I'm a bit confused about the usage of Abstract classes in C#. In C++, it makes sense to define a template ... base class, is it better to go for Interfaces? Question&Answers:os...

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

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269 views

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Android navigation drawer toggle icon to right

My requirement is shown in the picture below My navigation drawer should be opened from the right side. I have implemented this ... (Gravity.RIGHT); } } }); } } Question&Answers:os...

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

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sql - Optimize query with OFFSET on large table

I have table create table big_table ( id serial primary key, -- other columns here vote int ); This table is ... ? I've searched but didn't find anything. Question&Answers:os...

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

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date - Why does Javascript getYear() return 108?

Why does this javascript return 108 instead of 2008? it gets the day and month correct but not the year? myDate = new ... ; year = myDate.getYear(); year = 108? Question&Answers:os...

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

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c# - Console.ReadLine() max length?

When running a small piece of C# code, when I try to input a long string into Console.ReadLine() it seems to cut ... ), if so is there a way to increase that? Question&Answers:os...

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

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355 views

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Converting JSON to XLS/CSV in Java

Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. Question&Answers:os...

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

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99 views

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c++ - Is there any reason to use this->

I am programming in C++ for many years, still I have doubt about one thing. In many places in other people code I see ... use "this" ("Self", "Me", ...)? Question&Answers:os...

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

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java - Creating a triangle with for loops

I don't seem to be able to find the answer to this- I need to draw a simple triangle using for loops. * *** *** ... .out.print("*"); } System.out.println(""); } Question&Answers:os...

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

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c# - Invalid attempt to read when no data is present

private void button1_Click(object sender, EventArgs e) { string name; name = textBox5.Text; SqlConnection con10 = new ... . And how do I fix the error? Question&Answers:os...

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

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g++ - Escaping in makefile

I'm trying to do this in a makefile and it fails horribly: M_ARCH := $(shell g++ -dumpmachine | awk '{split( ... it has to do with escaping, but what and where? Question&Answers:os...

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

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166 views

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sql - How do I create a sequence in MySQL?

I'm trying to create a sequence in MySQL (I'm very new to SQL as a whole). I'm using the following code, but ... else needs help with this then here you go. :) Question&Answers:os...

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

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251 views

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Invalid Thread Access Error with Java SWT

I have a simple Java SWT app in Java so far but the weird thing is when I try to launch a messagebox/alert ... .java:200) Any help will be great. Thanks! Question&Answers:os...

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

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305 views

1 answer

Populate unique values into a VBA array from Excel

Can anyone give me VBA code that will take a range (row or column) from an Excel sheet and populate a list/array with ... fur[0]=table fur[1]=chair fur[2]=stool Question&Answers:os...

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

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