What is the role of ! in this javascript equation?
let data = 'hello : world';
data = data!.trim();I tried looking into the internet and wasn't able to find any satisfactory solution. Trying this in local browser return nothing.
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Calvin Nunes
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R. Gurung
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`Uncaught SyntaxError: Unexpected token !` Chrome console is blasting this – Krishna Prashatt Aug 02 '19 at 11:50
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Where did you find this? It looks invalid. – somethinghere Aug 02 '19 at 11:50
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3This is Typescript syntax. It asserts that `data` won't be undefined or null – CertainPerformance Aug 02 '19 at 11:50
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1Thanks, that solved my problem, this was from typescript, dumb me. – R. Gurung Aug 02 '19 at 11:52