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JavaScript/jQuery to download file via POST with JSON data

I have a jquery-based single-page webapp. It communicates with a RESTful web service via AJAX calls. I'm trying ... cons to these methods I should be aware of? Question&Answers:os...

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

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database - How to randomly select rows in SQL?

I am using MSSQL Server 2005. In my db, I have a table "customerNames" which has two columns "Id" and "Name ... Id, and Name) every time when query is executed? Question&Answers:os...

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

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symfony - Composer require runs out of memory. PHP Fatal error: Allowed memory size of 1610612736 bytes exhausted

I am trying to add HWIOAuthBundle to my project by running the below command. composer require hwi/oauth-bundle php-http/ ... by running php -i | grep php.ini Question&Answers:os...

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

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machine learning - Why binary_crossentropy and categorical_crossentropy give different performances for the same problem?

I'm trying to train a CNN to categorize text by topic. When I use binary cross-entropy I get ~80% ... results with binary, and poor results with categorical. Question&Answers:os...

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

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Best practices for copying files with Maven

I have config files and various documents that I want to copy from the dev environment to the dev-server ... tasks without fuss and bother. Any advice? Question&Answers:os...

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

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How to change an Android app's name?

Is there a way to change the name (Launcher App Label) of an app without creating a new project? Note: Name of the ... to change the name to Bar. Can I do this? Question&Answers:os...

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

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testing - How can I measure the speed of code written in PHP?

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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Python date string to date object

How do I convert a string to a date object in python? The string would be: "24052010" (corresponding ... datetime.datetime object, but rather a datetime.date. Question&Answers:os...

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

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Excel: last character/string match in a string

Is there an efficient way to identify the last character/string match in a string using base functions? I. ... algorithm. And this solution now seems obsolete. Question&Answers:os...

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

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ios - Detect backspace in empty UITextField

Is there any way to detect when the Backspace/Delete key is pressed in the iPhone keyboard on a UITextField ... also work when the UITextField is already empty. Question&Answers:os...

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

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94 views

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How to call C++ function from C?

I know this. Calling C function from C++: If my application was in C++ and I had to call functions from a library ... is the way out? By the way I'm using MSVC Question&Answers:os...

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

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309 views

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performance - Array vs. Object efficiency in JavaScript

I have a model with possibly thousands of objects. I was wondering what would be the most efficient way of storing ... i will have to sort the list many times? Question&Answers:os...

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

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c# - How costly is .NET reflection?

I constantly hear how bad reflection is to use. While I generally avoid reflection and rarely find situations where it ... hits and, is it really so bad? Question&Answers:os...

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

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python - Pandas groupby: How to get a union of strings

I have a dataframe like this: A B C 0 1 0.749065 This 1 2 0.301084 is 2 3 0.463468 a 3 4 0.643961 ... so I was hoping any Series method would work. Any ideas? Question&Answers:os...

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

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typescript - How to reload the current route with the angular 2 router

I am using angular 2 with hashlocation strategy. The component is loaded with that route: "departments/:id/employees ... employees`]); But nothing happens, why? Question&Answers:os...

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

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How can I restart a Java application?

How can I restart a Java AWT application? I have a button to which I have attached an event handler. What ... that Application.Restart() do in a C# application. Question&Answers:os...

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

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161 views

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Is there a difference between an "instance variable" and a "property" in Objective-c?

Is there a difference between an "instance variable" and a "property" in Objective-c? I'm not very sure ... has accessor methods, but I might think wrong. Question&Answers:os...

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

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188 views

1 answer

Comparing Dates in Oracle SQL

I'm trying to get it to display the number of employees that are hired after June 20, 1994, Select ... "JUN' invalid identifier. Please help, thanks! Question&Answers:os...

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

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379 views

1 answer

python - How to include package data with setuptools/distutils?

When using setuptools, I can not get the installer to pull in any package_data files. Everything I've read says ... data/ is the location of the data files. Question&Answers:os...

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

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138 views

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Is method reference caching a good idea in Java 8?

Consider I have code like the following: class Foo { Y func(X x) {...} void doSomethingWithAFunc(Function<X ... specific whether such caching is of any use? Question&Answers:os...

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

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241 views

1 answer

javascript - Dropdownlist width in IE

In IE, the dropdown-list takes the same width as the dropbox (I hope I am making sense) whereas in ... set different widths for dropbox and the dropdownlist? Question&Answers:os...

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

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218 views

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Struct memory layout in C

I have a C# background. I am very much a newbie to a low-level language like C. In C#, struct's memory ... behavior? What should be re-ordered/aligned and not? Question&Answers:os...

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

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372 views

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Change limit for "Mysql Row size too large"

How can I change the limit Row size too large (> 8126). Changing some columns to TEXT or BLOB or using ROW_FORMAT= ... No status int(11) No admin_id int(11) No Question&Answers:os...

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

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252 views

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python - How to convert a string of bytes into an int?

How can I convert a string of bytes into an int in python? Say like this: 'yxccxa6xbb' I came ... capacity and load characteristics of the particular machine. Question&Answers:os...

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

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102 views

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c++ - Why do objects of the same class have access to each other's private data?

Why do objects of the same class have access to each other's private data? class TrivialClass { public: ... didn't even understand this simple situation.) Question&Answers:os...

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

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379 views

1 answer

javascript - How can I custom-format the Autocomplete plug-in results?

I'm using the jQuery UI Autocomplete plug-in. Is there a way to highlight search character sequence in drop-down ... foo bar in the drop-down, like this: Question&Answers: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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c# - Using async/await for multiple tasks

I'm using an API client that is completely asynchrounous, that is, each operation either returns Task or Task< ... writing to the console as each one completes. Question&Answers:os...

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

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208 views

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c++ - What really is a deque in STL?

I was looking at STL containers and trying to figure what they really are (i.e. the data structure used), and the ... needs to be moved to a new bigger place. Question&Answers:os...

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

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