Xcell – Reactive, spreadsheet-like calculations in JavaScript

What it does

xcell is a tiny, open source (MIT) library for building reactive, spreadsheet-like calculations in JavaScript. Spreadsheets are cool—if we say that A1 is the sum of B1 and C1 , the spreadsheet will automatically update whenever we change the dependent cells. var b = 1 , c = 2 var a = b + c // a is 3 now b = 42 alert( "a is now: " + a) // it is still 3 :( our variable a does not automatically change if we change b . It will be equal to 3 until we imperatively change it something else. xcell allows us to write programs that work like spreadsheets. function add ( x, y ) { return x + y } var b = xcell( 1 ), c = xcell( 2 ) var a = xcell([b, c], add) alert(a.value) // a is 3 b.value = 42…from tomazy.github.io

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