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Calculate distance in meters when you know longitude and latitude in java

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

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angular - How to redirect to an external URL in Angular2?

What is the method for redirecting the user to a completely external URL in Angular 2. For example, if I need ... could be used to redirect to an external site? Question&Answers:os...

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

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angular - How to get current route

The current docs only talk about getting route params, not the actual route segments. For example, if i want ... parent of current route, how is that possible? Question&Answers:os...

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

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Use of def, val, and var in scala

class Person(val name:String,var age:Int ) def person = new Person("Kumar",12) person.age = 20 println(person. ... not work properly, and yet also don't error? Question&Answers:os...

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

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Spring MVC: How to return image in @ResponseBody?

I'm getting image data (as byte[]) from DB. How to return this image in @ResponseBody ? EDIT I did it ... /no_image.jpg"); return IOUtils.toByteArray(in); } Question&Answers:os...

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

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version control - What is the difference between "git init" and "git init --bare"?

What is the different between git init and git init --bare? I found that a lot of blog post requires --bare ... to have --bare for the Git server setup? Question&Answers:os...

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

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math - How to convert latitude or longitude to meters?

If I have a latitude or longitude reading in standard NMEA format is there an easy way / formula to convert that ... easily do-able or still overly maths-y? Question&Answers:os...

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

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ruby on rails - How can I avoid running ActiveRecord callbacks?

I have some models that have after_save callbacks. Usually that's fine, but in some situations, like when ... method is documented but it seems to work. Question&Answers:os...

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

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git --git-dir not working as expected

I am trying to run git from a different directory than I am in. So for example if I am in: cd /home/domain ... Hope someone can advise on what I'm doing wrong. Question&Answers:os...

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

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unix timestamp - Getting "unixtime" in Java

Date.getTime() returns milliseconds since Jan 1, 1970. Unixtime is seconds since Jan 1, 1970. I don't usually ... there a better way to get unixtime in java? Question&Answers:os...

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

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css - How to create a drop shadow only on one side of an element?

Is there a way to drop the shadow only on the bottom?. I have a menu with 2 images next to each other. ... .Shadow(Strength=4, Direction=180, Color='#000000'); Question&Answers:os...

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

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amazon web services - AWS Elastic Beanstalk, running a cronjob

I would like to know if there is a way to setup a cronjob/task to execute every minute. Currently any of my ... this is the correct way to do it Any ideas? Question&Answers:os...

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

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python - Check if two unordered lists are equal

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

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ios - Using SSL in an iPhone App - Export Compliance

I'm looking at creating an iPhone app that will communicate with a REST Web service. Because some user- ... either from Apple or from the US government? Question&Answers:os...

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

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Is there a way to make a PowerShell script work by double clicking a .ps1 file?

I am distributing a PowerShell script to my team. The script is to fetch an IP address from the Vsphere client, ... script work by double clicking a .ps1 file? Question&Answers:os...

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

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css - How to word wrap text in HTML?

How can text like aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa which exceeds the width of a div (say 200px) be wrapped? I ... solution such as CSS, jQuery, etc. Question&Answers:os...

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

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R shiny passing reactive to selectInput choices

In a shiny app (by RStudio), on the server side, I have a reactive that returns a list of variables by ... to Ramnath for his effort, patience and guidance. Question&Answers:os...

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

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python - Redirecting to URL in Flask

I'm new to Python and Flask and I'm trying to do the equivalent of Response.redirect as in C# - ie: redirect to a ... ) app.run(host='0.0.0.0', port=port) Question&Answers:os...

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

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c# - Is there a way to check if WPF is currently executing in design mode or not?

Does anyone know of some global state variable that is available so that I can check if the code is currently ... throw new Exception(ex.Message); } } } Question&Answers:os...

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

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Creating PHP class instance with a string

I have two classes, class ClassOne { } and class ClassTwo {}. I am getting a string which can be either "One" or " ... string, i.e. new Class("Class" . $str);? Question&Answers:os...

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

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JSON to TypeScript class instance?

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

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javascript - Using JQuery hover with HTML image map

I have a complicated background image with a lot of small regions that need rollover illustration highlights, along with ... Pentagon" id="ID_pentagon"> </div> Question&Answers:os...

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

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python - How do I clone a Django model instance object and save it to the database?

Foo.objects.get(pk="foo") <Foo: test> In the database, I want to add another object which is a copy of the ... with a different primary key. How can I do that? Question&Answers:os...

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

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463 views

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performance - Efficient string concatenation in C++

I heard a few people expressing worries about "+" operator in std::string and various workarounds to speed up ... best way to concatenate strings in C++? Question&Answers:os...

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

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189 views

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windows service vs scheduled task

What are the cons and pros of windows services vs scheduled tasks for running a program repeatedly (e.g. every two minutes)? Question&Answers:os...

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

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google chrome - Invalid self signed SSL cert - "Subject Alternative Name Missing"

Recently, Chrome has stopped working with my self signed SSL certs, and thinks they're insecure. When I ... :ERR_CERT_COMMON_NAME_INVALID). How can I fix this? Question&Answers:os...

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

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170 views

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How do I register a DLL file on Windows 7 64-bit?

I have tried to use the following code: cd c:windowssystem32 regsvr32.exe dllname.ax But this is not working for ... file on Windows 7 with a 64-bit processor? Question&Answers:os...

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

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131 views

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javascript - Accessing variables from other functions without using global variables

I've heard from a variety of places that global variables are inherently nasty and evil, but when doing some non- ... this. Is a global variable really so bad? Question&Answers:os...

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

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