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What is the point of “final class” in Java?
...his argument. Does someone care to explain how, say, a non-final java.lang.String would have ended up either inefficient or insecure?
– MRA
Jul 13 '12 at 12:13
30
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How to escape special characters in building a JSON string?
Here is my string
11 Answers
11
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Checking if an object is a given type in Swift
...ou want to check against a specific type you can do the following:
if let stringArray = obj as? [String] {
// obj is a string array. Do something with stringArray
}
else {
// obj is not a string array
}
You can use "as!" and that will throw a runtime error if obj is not of type [String]
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Expansion of variables inside single quotes in a command in Bash
...relevant: Which characters need to be escaped in bash?
Do not concatenate strings interpreted by a shell
You should absolutely avoid building shell commands by concatenating variables. This is a bad idea similar to concatenation of SQL fragments (SQL injection!).
Usually it is possible to have pl...
Use dynamic (variable) string as regex pattern in JavaScript
...
To create the regex from a string, you have to use JavaScript's RegExp object.
If you also want to match/replace more than one time, then you must add the g (global match) flag. Here's an example:
var stringToGoIntoTheRegex = "abc";
var regex = new Reg...
Merge a Branch into Trunk
...
Really? Without risking remerging the same changesets? Can you provide a link to corroborating evidence of this please.
– Neutrino
Apr 3 '12 at 16:56
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Spring JPA @Query with LIKE
...ins it). I tried to use method "findUserByUsernameLike(@Param("username") String username)" but as it is told in Spring documentation, this method is equal to
" where user.username like ?1 ". It is not good for me, as I already told that I'm trying to get all users whose username contains ...
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Count number of matches of a regex in Javascript
...r a generic way to count the number of occurrences of a regex pattern in a string, and don't want it to fail if there are zero occurrences, this code is what you need. Here's a demonstration:
/*
* Example
*/
const count = (str) => {
const re = /[a-z]{3}/g
return ((str || '').ma...
How do you usually Tag log entries? (android)
...sume most of you are aware of android.util.Log
All logging methods accept 'String tag' as a first argument.
13 Answers
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How to detect orientation change?
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Im new to coding but shouldn't selector have a string format of "rotated:"??
– Chameleon
Apr 24 '15 at 23:44
4
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