大约有 4,769 项符合查询结果(耗时:0.0216秒) [XML]

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Convert a float64 to an int in Go

...t64 to an int in Go? I know the strconv package can be used to convert anything to or from a string, but not between data types where one isn't a string. I know I can use fmt.Sprintf to convert anything to a string, and then strconv it to the data type I need, but this extra conversion seems a...
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Uncaught SyntaxError: Unexpected token with JSON.parse

...ed to convert a string containing JSON notation into a Javascript object. Your code turns the object into a string (by calling .toString()) in order to try to parse it as JSON text. The default .toString() returns "[object Object]", which is not valid JSON; hence the error. ...
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What is the difference between a port and a socket?

This was a question raised by one of the software engineers in my organisation. I'm interested in the broadest definition. ...
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What is the difference between supervised learning and unsupervised learning? [closed]

..., what is the difference between supervised and unsupervised learning? Can you provide a basic, easy explanation with an example? ...
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How to save a BufferedImage as a File

I am using the imgscalr Java library to resize an image . 6 Answers 6 ...
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How to “test” NoneType in python?

I have a method that sometimes returns a NoneType value. So how can I question a variable that is a NoneType? I need to use if method, for example ...
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Remove columns from dataframe where ALL values are NA

I'm having trouble with a data frame and couldn't really resolve that issue myself: The dataframe has arbitrary properties as columns and each row represents one data set . ...
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How do I get list of methods in a Python class?

...ough the methods in a class, or handle class or instance objects differently based on the methods present. How do I get a list of class methods? ...
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How do I clone a job in Jenkins?

...odification in Gerrit is verified. If the build fails then it is not. My understanding is that this is accomplished through jobs set up in Jenkins . We have now created a new branch ( git ) and I guess I need to clone the existing jobs pointing to the other branch so that this same workflow oc...
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In javascript, is an empty string always false as a boolean?

... Yes. Javascript is a dialect of ECMAScript, and ECMAScript language specification clearly defines this behavior: ToBoolean The result is false if the argument is the empty String (its length is zero); otherwise the result is...