Javascript Absolute Value

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This article will show you how to use the math object to calculate the absolute value of an input.

As a reminder, the absolute value of a number ignores the sign - assumes all digits are 0 or more and returns that number. To use the absolute value method of the Math object, here is the syntax:

Math.abs (inputVal);

Since we are using the Math object, we will start with Math. The absolute value method is the abbreviation abs. The set of brackets calls the method of the input value inside the brackets and returns the absolute value.

If you enter a string, it returns NaN. A NULL value would return 0 and positive numbers or n negative, of course, would return the positive number.

Conclusion

That’s it! Now you can use the Math object to calculate the absolute value of a number. Here are some articles that can help you figure out what to learn next:

👻 Read also: what is the best laptop for engineering students?

Javascript Absolute Value absolute: Questions

How to get an absolute file path in Python

3 answers

izb By izb

Given a path such as "mydir/myfile.txt", how do I find the file"s absolute path relative to the current working directory in Python? E.g. on Windows, I might end up with:

"C:/example/cwd/mydir/myfile.txt"
877

Answer #1

>>> import os
>>> os.path.abspath("mydir/myfile.txt")
"C:/example/cwd/mydir/myfile.txt"

Also works if it is already an absolute path:

>>> import os
>>> os.path.abspath("C:/example/cwd/mydir/myfile.txt")
"C:/example/cwd/mydir/myfile.txt"

Javascript Absolute Value absolute: Questions

How to check if a path is absolute path or relative path in a cross-platform way with Python?

3 answers

UNIX absolute path starts with "/", whereas Windows starts with alphabet "C:" or "". Does python have a standard function to check if a path is absolute or relative?

175

Answer #1

os.path.isabs returns True if the path is absolute, False if not. The documentation says it works in windows (I can confirm it works in Linux personally).

os.path.isabs(my_path)

Javascript Absolute Value absolute: Questions

How to join absolute and relative urls?

3 answers

I have two urls:

url1 = "http://127.0.0.1/test1/test2/test3/test5.xml"
url2 = "../../test4/test6.xml"

How can I get an absolute url for url2?

139

Answer #1

You should use urlparse.urljoin :

>>> import urlparse
>>> urlparse.urljoin(url1, url2)
"http://127.0.0.1/test1/test4/test6.xml"

With Python 3 (where urlparse is renamed to urllib.parse) you could use it as follow:

>>> import urllib.parse
>>> urllib.parse.urljoin(url1, url2)
"http://127.0.0.1/test1/test4/test6.xml"

We hope this article has helped you to resolve the problem. Apart from Javascript Absolute Value, check other absolute-related topics.

Want to excel in Python? See our review of the best Python online courses 2023. If you are interested in Data Science, check also how to learn programming in R.

By the way, this material is also available in other languages:



Boris Chamberlet

Texas | 2023-01-27

JavaScript is always a bit confusing 😭 Javascript Absolute Value is not the only problem I encountered. I am just not quite sure it is the best method

Frank Richtgofen

Rome | 2023-01-27

Thanks for explaining! I was stuck with Javascript Absolute Value for some hours, finally got it done 🤗. I just hope that will not emerge anymore

Schneider Galleotti

Prague | 2023-01-27

Thanks for explaining! I was stuck with Javascript Absolute Value for some hours, finally got it done 🤗. Will get back tomorrow with feedback

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