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flutter - how to get specific value from a string

have this String "name=jack&age=22&true&red" and i want to get all the value as sperate String i can get the first value by this but don't know how to get the other

String text = "name=jack&age=22&true&red" ;
var splitText = text.split("&") ; // [name=jack, age=22, true, red]
var firstValue= splitText.first ;  // name=jack
question from:https://stackoverflow.com/questions/65869844/how-to-get-specific-value-from-a-string

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By index:

splitText[1] // age=22
splitText[2] // true
splitText[3] // red

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