spreadsheet.html Example
#32
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A
<td>within a<table>has a number of interesting metadata values which this PR now calculates more-correctly:size_key- a unique column ID (including row header<th>columns.cidx- the index within the current<tr>.xandy- the corresponding indices into thedataproperty returned by the data model.Also adds a motivating example which requires precise data spatial awareness,
spreadsheet.html, which usescontenteditableto implement a simple Excel-style app complete with an expression language with range syntax support: