For most objects, use for .. in : With ES6, if you need both keys and values simultaneously, do To avoid logging inherited properties, check with hasOwnProperty : You don’t need to check hasOwnProperty when iterating on keys if you’re using a simple object (for example one you made yourself with {}). This MDN documentation explains more generally how to deal with objects … Read more
it turns out I was mistaken. Solution is: in anaconda (as well as in other implementations), set the path environment variable to the directory where ‘python.exe’ is installed. As a default, the python.exe file in anaconda is in: after you do that, obviously, the python command works, in my case, yielding the following.
Namespacing does for functions and classes what scope does for variables. It allows you to use the same function or class name in different parts of the same program without causing a name collision. In simple terms, think of a namespace as a person’s surname. If there are two people named “John” you can use their … Read more
I have made a Jar file, but I cant make it to run by double clicking.It works fine using java -jar name.jar or by making a batch file.I have already reinstalled jdk1.8.0_102, set the JAVA_HOME variable and javaw.exe in the jre folder is already the default program to run it.so how do I make it to run by double clicking?
I have a machine learning classification problem with 80% categorical variables. Must I use one hot encoding if I want to use some classifier for the classification? Can i pass the data to a classifier without the encoding? I am trying to do the following for feature selection: I read the train file:num_rows_to_read = 10000 … Read more
2021 Update… Bootstrap 5 (beta) For aligning within a flexbox div or row… ml-auto is now ms-auto mr-auto is now me-auto For text align or floats.. text-left is now text-start text-right is now text-end float-left is now float-start float-right is now float-end Bootstrap 4+ pull-right is now float-right text-right is the same as 3.x, and works for inline elements both float-* and text-* are responsive for different alignment at different widths (ie: float-sm-right) The flexbox utils (eg:justify-content-between) can … Read more
Statically typed languages A language is statically typed if the type of a variable is known at compile time. For some languages this means that you as the programmer must specify what type each variable is; other languages (e.g.: Java, C, C++) offer some form of type inference, the capability of the type system to deduce … Read more
Calling in the command-line gives help about this syntax (which can be used outside FOR, too, this is just the place where help can be found). In addition, substitution of FOR variable references has been enhanced. You can now use the following optional syntax: The modifiers can be combined to get compound results: In the … Read more
How can I convert a set to a list in Python? Using doesn’t work. It gives me:
Most likely it means that the open didn’t fail. When Perl opens a file, it checks whether or not the file is a TTY (so that it can answer the -T $fh filetest operator) by issuing the TCGETS ioctl against it. If the file is a regular file and not a tty, the ioctl fails and sets errno to ENOTTY (string value: … Read more