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How to declare a type as nullable in TypeScript?
...SomeEmployeeB implements Employee1 {
public name: string;
}
Compare with:
interface Employee2 {
name: string;
salary?: number;
}
var a: Employee2 = { name: 'Bob', salary: 40000 }; // OK
var b: Employee2 = { name: 'Bob' }; // OK
var c: Employee2 = { name: 'Bob', salary: undefined }; /...
How do I change the UUID of a virtual disk?
I am trying to create a new virtual machine with Oracle VirtualBox, using an already-existing hard disk. When I try to select the existing hard disk file, a .vhd file, it displays an error saying the virtual hard disk cannot be used because the UUID already exists.
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Does git return specific return error codes?
Like merging errors, or rebase errors. Does it have a unique error code?
6 Answers
6
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Install a Python package into a different directory using pip?
... --install-option to multiple times to add any of the options you can use with python setup.py install (--prefix is probably what you want, but there are a bunch more options you could use).
share
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Convert dmesg timestamp to custom date format
I am trying to understand the dmesg timestamp and find it hard to convert that to change it to java date/custom date format.
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Cancel split window in Vim
I have split my windows horizontally. Now how can I return to normal mode, i.e. no split window just one window without cancelling all of my open windows. I have 5 and do not want to "quit", just want to get out of split window.
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Difference between IsNullOrEmpty and IsNullOrWhiteSpace in C# [duplicate]
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Source: MSDN
IsNullOrWhiteSpace is a convenience method that is similar to the
following code, except that it offers superior performance:
return String.IsNullOrEmpty(value) || value.Trim().Length == 0;
White-space characters are defined b...
Configuring so that pip install can work from github
We'd like to use pip with github to install private packages to our production servers. This question concerns what needs to be in the github repo in order for the install to be successful.
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Secondary axis with twinx(): how to add to legend?
I have a plot with two y-axes, using twinx() . I also give labels to the lines, and want to show them with legend() , but I only succeed to get the labels of one axis in the legend:
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How to upgrade rubygems
...upgrade gems to 1.8 i tried installing the respective debian packages but it seems its not getting upgraded
8 Answers
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