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There are plenty of similar questions to be found on here but I don't think that any answer the question ... is a unique identifier for that particular post. Question&Answers:os...

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

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File Upload In Angular?

I know this is very a general question but I am failing to upload a file in Angular 2. I have tried 1) ... demo link is provided it will be really appreciated. Question&Answers:os...

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

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What is the difference between "word-break: break-all" versus "word-wrap: break-word" in CSS

I am currently wondering what is the difference between the two. When I used both they seem to break the word if it ... But why did W3C made two ways to do it? Question&Answers:os...

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

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oop - Mutable vs immutable objects

I'm trying to get my head around mutable vs immutable objects. Using mutable objects gets a lot of bad ... objects? Should you avoid them whenever possible? Question&Answers:os...

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

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php - Convert a series of parent-child relationships into a hierarchical tree?

I have a bunch of name-parentname pairs, that I'd like to turn into as few heirarchical tree structures as ... m not quite awake enough to think it through. Question&Answers:os...

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

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Vertical (rotated) label in Android

I need 2 ways of showing vertical label in Android: Horizontal label turned 90 degrees counterclockwise (letters on the ... if I need to go completely custom? Question&Answers:os...

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

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android - Volley JsonObjectRequest Post request not working

I am using android Volley for making a request. So I use this code. I don't understand one thing. I check in ... ; return params; }; }; queue.add(jsObjRequest); 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 create a list of random numbers without duplicates?

I tried using random.randint(0, 100), but some numbers were the same. Is there a method/module to create a list ... lines = random.sample(f1.readlines(), 40); Question&Answers:os...

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

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vba - Microsoft Excel ActiveX Controls Disabled?

I have some Excel worksheets that use ActiveX checkboxes to control certain activity. They worked recently but ... recent update? Any suggestions? Thanks, Mike Question&Answers:os...

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

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python - Fast punctuation removal with pandas

This is a self-answered post. Below I outline a common problem in the NLP domain and propose a few ... when dealing with hundreds of thousands of records? Question&Answers:os...

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

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Generating time series between two dates in PostgreSQL

I have a query like this that nicely generates a series of dates between 2 given dates: select date '2004-03-07' ... and 2008-04-01. Is there a better solution? Question&Answers:os...

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

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floating point - How many significant digits do floats and doubles have in java?

Does a float have 32 binary digits and a double have 64 binary digits? The documentation was too hard to make ... the decimal point take up some of the bits? Question&Answers:os...

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

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Update field in exact element array in MongoDB

I have a document structured like this: { _id:"43434", heroes : [ { nickname : "test", items : ["", "", ""] }, { ... "test2", items : ["", "", ""] }, ] } Question&Answers:os...

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

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javascript - Why I have to put all the script to index.html in jquery mobile

I have used $.mobile.changepage to do the redirect in my phonegap+jquerymobile projects. However what makes me ... to be preserved. Appreciated for your help. Question&Answers:os...

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

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macos - How to install latest version of openssl Mac OS X El Capitan

I have used brew install openssl to download and install openssl v1.0.2f, however, it comes back saying: A CA file ... online don't seem to work for me... Question&Answers:os...

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

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java - ClassCastException when casting to the same class

I have 2 different Java projects, one has 2 classes: dynamicbeans.DynamicBean2 and dynamic.Validator. On the other ... . Any reason why I'm getting this? Question&Answers:os...

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

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248 views

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c++ - Order of evaluation of arguments using std::cout

Hi all I stumbled upon this piece of code today and I am confused as to what exactly happens and more ... Win7 and MSVS 2010. Any help is appreciated! Question&Answers:os...

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

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290 views

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performance - Google app script timeout ~ 5 minutes?

My google app script is iterating through the user's google drive files and copying and sometimes moving files ... run. Are there any settings or workarounds? Question&Answers:os...

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

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javascript - Why are Callbacks from Promise `.then` Methods an Anti-Pattern

I have seen answers on StackOverflow where people suggest furnishing a callback function to an AngularJS service. app. ... original way was not a good idea? Question&Answers:os...

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

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oop - What techniques can be used to define a class in JavaScript, and what are their trade-offs?

I prefer to use OOP in large scale projects like the one I'm working on right now. I need to create ... JavaScript. Is there a better way to do inheritance? Question&Answers:os...

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

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sql server - What are the best practices for using a GUID as a primary key, specifically regarding performance?

I have an application that uses GUID as the Primary Key in almost all tables and I have read that ... supposed performance hits associated with this approach? Question&Answers:os...

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

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javascript - Can I find events bound on an element with jQuery?

I bind two event handlers on this link: <a href='#' id='elm'>Show Alert</a> JavaScript: $(function() { $( ... an element, in this case on element with id="elm"? Question&Answers:os...

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

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HTML input - name vs. id

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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346 views

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shell - Find and replace in file and overwrite file doesn't work, it empties the file

I would like to run a find and replace on an HTML file through the command line. My command looks ... replace has been executed. Why is this happening? Question&Answers:os...

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

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Android: Go back to previous activity

I want to do something simple on android app. How is it possible to go back to a previous activity. What code do I need to go back to previous activity Question&Answers:os...

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

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security - How to encrypt/decrypt data in php?

I'm currently a student and I'm studying PHP, I'm trying to make a simple encrypt/decrypt of data in PHP. ... help and be very much appreciated. Thank you++ Question&Answers:os...

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

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javascript - Understanding the Event Loop

I am thinking about it and this is what I came up with: Let's see this code below: console.clear() ... to get some clarifications about the items listed above? Question&Answers:os...

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

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java - Math.random() explanation

This is a pretty simple Java (though probably applicable to all programming) question: Math.random() returns a number ... how to do this with Math.random(). Question&Answers:os...

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

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