Experiment #2 to replace the large array of Excel function definitions with a FlyWeight Pattern collection of Value Objects #2734
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added 3 commits
March 27, 2022 21:01
…n signature definitions with a structured collection of Value Objects to see what affect it has on memory usage and speed. This isn't a perfect implementation yet: but it's enough to take a look at the memory usage and speed.
…ther than starting with a pre-populated list
- TEXTBEFORE – Returns text that’s before delimiting characters - TEXTAFTER – Returns text that’s after delimiting character - TEXTSPLIT – Splits text into rows or columns using delimiters - VSTACK – Stacks arrays vertically - HSTACK – Stacks arrays horizontally - TOROW – Returns the array as one row - TOCOL – Returns the array as one column - WRAPROWS – Wraps a row array into a 2D array - WRAPCOLS – Wraps a column array into a 2D array - TAKE – Returns rows or columns from array start or end - DROP – Drops rows or columns from array start or end - CHOOSEROWS – Returns the specified rows from an array - CHOOSECOLS – Returns the specified columns from an array - EXPAND – Expands an array to the specified dimensions
This was referenced Jun 18, 2022
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Why this change is needed?
Experiment to replace the large "unstructured" array of Excel function signature definitions with a structured collection of Value Objects to see what affect it has on memory usage and speed.
This isn't a perfect implementation yet: but it's enough to take a look at the memory usage and speed of the new solution.
Hopefully, this approach will also make Excel function definitions/implementations easier to maintain in future, and potentially allow new benefits such as defining the Excel version where they became available, and also if Microsoft have deprecated them.