December 2016
Intermediate to advanced
841 pages
17h
English
Content preview from TypeScript: Modern JavaScript Development
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Using data types for expressions
Fields of the spreadsheet can contain expressions, that can be calculated. To calculate these values, the input of the user must be converted to a data structure, which can then be used to calculate the result of that field.
These expressions can contain constants, operations, references to other fields or a parenthesized expression:
- Constants:
0,42,10.2,4e6,7.5e8 - Unary expression:
-expression,expression! - Binary expression:
expression + expression,expression / expression - References:
3:1(third column, first row) - Parenthesized expression:
(expression)
We will create these types in lib/model/expression.ts. First we ...
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