TypeScript Version: 3.7.x-dev.20200221
Search Terms:
Code
const m = ''.match('');
m?.[0] && m[0];
m?.[0]! && m[0];
m?.[0].length! > 0 && m[0];
m?.[0].split('').slice() && m[0];
m?.[0].split('')!.slice() && m[0];Expected behavior:
const m = ''.match('');
m?.[0] && m[0]; // ok
m?.[0]! && m[0]; // ok
m?.[0].length! > 0 && m[0]; // ok
m?.[0].split('').slice() && m[0]; // ok
m?.[0].split('')!.slice() && m[0]; // okActual behavior:
const m = ''.match('');
m?.[0] && m[0]; // ok
m?.[0]! && m[0]; // error
m?.[0].length! > 0 && m[0]; // error
m?.[0].split('').slice() && m[0]; // ok
m?.[0].split('')!.slice() && m[0]; // errorPlayground Link: http://www.typescriptlang.org/play/index.html?ts=3.9.0-dev.20200221&ssl=5&ssc=34&pln=4&pc=28#code/MYewdgzgLgBAtjAvDA5CgdHAhlYALACjQEoBuAKDgH50BtABgF0YAyF+Bxi6upgQlbs4nbjU7oANgFMwAcyh4BAPhj1BHJqN6N0EAA4SAllCIpiuo8CkFi64Zspimug8dPE+Fw1Zt2RQA
Related Issues:
TypeScript Version: 3.7.x-dev.20200221
Search Terms:
Code
Expected behavior:
Actual behavior:
Playground Link: http://www.typescriptlang.org/play/index.html?ts=3.9.0-dev.20200221&ssl=5&ssc=34&pln=4&pc=28#code/MYewdgzgLgBAtjAvDA5CgdHAhlYALACjQEoBuAKDgH50BtABgF0YAyF+Bxi6upgQlbs4nbjU7oANgFMwAcyh4BAPhj1BHJqN6N0EAA4SAllCIpiuo8CkFi64Zspimug8dPE+Fw1Zt2RQA
Related Issues: