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Method to Add new or update existing item in Dictionary
In some legacy code i have see the following extension method to facilitate adding a new key-value item or updating the value, if the key already exists.
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Escaping keyword-like column names in Postgres
If the column in Postgres' table has the name year , how should look INSERT query to set the value for that column?
3 An...
RegEx to make sure that the string contains at least one lower case char, upper case char, digit and
What is the regex to make sure that a given string contains at least one character from each of the following categories.
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HTTP Basic Authentication credentials passed in URL and encryption
I have a question about HTTPS and HTTP Authentication credentials.
3 Answers
3
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What is javax.inject.Named annotation supposed to be used for?
I am trying to understand the javax.inject package and I am not clear what the javax.inject.Named annotation is supposed to be used for. The Javadoc does not explain the the idea behind it.
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Accessing member of base class
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Working example. Notes below.
class Animal {
constructor(public name) {
}
move(meters) {
alert(this.name + " moved " + meters + "m.");
}
}
class Snake extends Animal {
move() {
alert(this.name + " is Slithering...");
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Boolean vs tinyint(1) for boolean values in MySQL
...cal, bool should be the preferred option because it carries the semantic meaning of what you're trying to do. Also, many ORMs will convert bool into your programing language's native boolean type.
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How to use UIScrollView in Storyboard
...ve this problem without that attribute?
– Andras Hatvani
Oct 5 '13 at 14:13
2
If you have a solut...
What is NSZombie?
... here's an addition for XCode 4:
In XCode 4.2, there's an even easier mechanism to make use of Zombie detection - the Zombie Instrument. Instead of "Run" to start the app, use "Profile" and an instrument selector will come up. Select "Zombie", and the app will start running - do whatever causes ...
What's the difference between `1L` and `1`?
I often seen the symbol 1L (or 2L , 3L , etc) appear in R code. Whats the difference between 1L and 1 ? 1==1L evaluates to TRUE . Why is 1L used in R code?
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