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Cannot create an array of LinkedLists in Java…?
...e the row map type a TreeMap, and same for traversing the columns in index order, but if you don't need those cases, HashMap is quicker than TreeMap. Helper methods to get and set an arbitrary cell, handling unset null values, would be useful, of course.
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Most efficient way to reverse a numpy array
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In order to have it working with negative numbers and a long list you can do the following:
b = numpy.flipud(numpy.array(a.split(),float))
Where flipud is for 1d arra
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Overwrite or override
...ctionary:
override sth: to use your authority to reject sb's decision, order,
etc.
Here override means it "ignores" something by its higher authority.
abort does not replace the signal mask of the process, it just "ignore" the constraint with higher authority.
So I think override and overw...
How to print the values of slices
...t (instead of []Project), you are better off defining a String() method in order to display exactly what you want to see (or you will see only pointer address).
See this play.golang example.
share
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Are there any SHA-256 javascript implementations that are generally considered trustworthy?
...ssword becomes irrelevant. An attacker needs only to intercept the hash in order to impersonate the user, and if that hash is stored unmodified on the server, then the server is storing the true password (the hash) in plain-text.
So your security is now worse because you decided add your own improv...
Git command to show which specific files are ignored by .gitignore
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As mentioned in the ls-files man page, --others is the important part, in order to show you non-cached, non-committed, normally-ignored files.
--exclude_standard is not just a shortcut, but a way to include all standard "ignored patterns" settings.
exclude-standard
Add the standard git excl...
How do I replace a character at a particular index in JavaScript?
...T1: 195ms
TEST2: 6ms
It seems that array conversion beats substring by 2 orders of magnitude! So - what the hell happened here???
What actually happens is that all operations in TEST2 are done on array itself, using assignment expression like strarr2[p] = n. Assignment is really fast compared to ...
What is the difference between README and README.md in GitHub projects?
... see at the bottom of projects. Github has their own flavor of Markdown.
Order of Preference: If you have two files named README and README.md, the file named README.md is preferred, and it will be used to generate github's html summary.
FWIW, Stack Overflow uses local Markdown modifications as...
Ansible: Set variable to file content
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You can use lookups in Ansible in order to get the contents of a file, e.g.
user_data: "{{ lookup('file', user_data_file) }}"
Caveat: This lookup will work with local files, not remote files.
Here's a complete example from the docs:
- hosts: all
vars:
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Java logical operator short-circuiting
...when the right-hand operand depends on the left one being true or false in order to function properly.
For example, the following code fragment shows how you can take advantage of short-circuit logical evaluation to be sure that a division operation will be valid before evaluating it:
if ( denom !...