Property Modifier ↔ TS Syntax to specify property's Type, if optional? & if writable?
aka Modifier
readonly
Property Modifier JS Keyword to set Object property as read-only
Typed Optional Parameter
TS Syntax to mark Identifier as an optional Parameter using ?:
References
private↔ JS Keyword & Property Modifier to restrict Method to withinclassonlyreadonly↔ Property Modifier JS Keyword to set Object property as read-onlyset↔ prefix JS Keyword Modifier to create Setterprotected↔ Modifier to restrict Method toclassor child classesAccessor Property↔ Value Modifier to set access via Getter & Setter Method