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What are the differences between Rust's `String` and `str`?
...tr most commonly2 appears as &str: a reference to some UTF-8 data, normally called a "string slice" or just a "slice". A slice is just a view onto some data, and that data can be anywhere, e.g.
In static storage: a string literal "foo" is a &'static str. The data is hardcoded into the execu...
How do you organise multiple git repositories, so that all of them are backed up together?
...d checked-out on a few machines. This was a pretty good backup system, and allowed me easily work on any of the machines. I could checkout a specific project, commit and it updated the 'master' project, or I could checkout the entire thing.
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Can a shell script set environment variables of the calling shell? [duplicate]
..., when run, will set some environment variables that will stay set in the caller's shell.
21 Answers
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event.preventDefault() vs. return false
...eturn false from within a jQuery event handler is effectively the same as calling both e.preventDefault and e.stopPropagation on the passed jQuery.Event object.
e.preventDefault() will prevent the default event from occuring, e.stopPropagation() will prevent the event from bubbling up and return f...
How to convert SecureString to System.String?
All reservations about unsecuring your SecureString by creating a System.String out of it aside , how can it be done?
11 A...
Extracting specific columns in numpy array
This is an easy question but say I have an MxN matrix. All I want to do is extract specific columns and store them in another numpy array but I get invalid syntax errors.
Here is the code:
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Does the join order matter in SQL?
...ssociative as long as neither predicate can be satisfied by a row in which all columns from one table are NULL, than to say that it's associative as long as the predicates don't involve IS NULL or 'a function that is related to nulls'. One can easily imagine a predicate that satisfies the former des...
Padding between ActionBar's home icon and title
...ution. I used it and @Alesqui is right - the app icon changed and became smaller... You could change icon but since dp is different for different phones then this solution doesn't cut it in a production app.
– Johan S
Mar 20 '13 at 18:43
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How does Git handle symbolic links?
...ks configuration variable to false, and symlinks would be checked out as small plain text files that contain the link text.
– Jakub Narębski
Jun 5 '09 at 9:42
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Java Replacing multiple different substring in a string at once (or in the most efficient way)
...time up-front to compile, so it won't be efficient if your input is very small or your search pattern changes frequently).
Below is a full example, based on a list of tokens taken from a map. (Uses StringUtils from Apache Commons Lang).
Map<String,String> tokens = new HashMap<String,Strin...