Menu
I am new to scala !
My question is, if there is case class that contains a member
myItem:Option[String] When i construct the class, i need to wrap the string content in:
Option("some string") OR
Some("some string") Is there any difference ?
Thanks!
939
Key Takeaways. Options prices, known as premiums, are composed of the sum of its intrinsic and time value. Intrinsic value is the price difference between the current stock price and the strike price. An option's time value or extrinsic value of an option is the amount of premium above its intrinsic value.
In cost–benefit analysis and social welfare economics, the term option value refers to the value that is placed on private willingness to pay for maintaining or preserving a public asset or service even if there is little or no likelihood of the individual actually ever using it.
Key Takeaways. The option premium is the total amount that investors pay for an option. The intrinsic value of an option is the amount of money investors would get if they exercised the option immediately.
Option value, also known as option premium, is really just made up of two contributing factors - intrinsic & extrinsic value. These values change based on three inputs: strike price in relation to the stock price, implied volatility, and time until expiration. That's it!
If you look into Scala's sources you'll notice that Option(x) just evaluates x and returns Some(x) on not-null input, and None on null input.
I'd use Option(x) when I'm not sure whether x can be null or not, and Some(x) when 100% sure x is not null.
One more thing to consider is when you want to create an optional value, Some(x) produces more code because you have to explicitly point the value's type:
val x: Option[String] = Some("asdasd") //val x = Option("asdasd") // this is the same and shorter If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
