{"action":"created","comment":{"url":"https://api.github.com/repos/Microsoft/TypeScript/pulls/comments/40181585","id":40181585,"diff_hunk":"@@ -0,0 +1,60 @@\n+//// [emitExponentiationOperatorInTemplateString1.ts]\r\n+var t1 = 10;\n+var t2 = 10;\n+var s;\n+`Exp: ${t1 ** t2} 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important thing is that some of these tests need to vary - in a sense, it's generally more important that you test the combinations of places where a substitution expression can occur than what you actually put in them.\r\n\r\nYou should also have a test for `**`:\r\n* At a substitution position where the template is empty: `` `${t1 ** t2}` ``\r\n* At the first substitution position where only the *template head* is empty: `` `${t1 ** t2}hello world` ``\r\n* At the last substitution position where the *template tail** is empty: `` `hello world${t1 ** t2 ** t2}` ``\r\n* In two consecutive substitutions where the portions in between are empty and:\r\n    * Head is empty: `` `${t1 ** t2}${t2 ** t1}hello world` ``\r\n    * Tail is empty: `` `hello world${t1 ** t2}${t2 ** t1}` ``\r\n    * Both are empty: `` `${t1 ** t2}${t2 ** t1}` ``\r\n    * Both are full: `` `hello ${t1 ** t2}${t2 ** t1} world` 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