字符串字面量类型/其他类型字面量类型
时间:2022-05-11 07:04
1 type testName = ‘lx‘ | ‘bj‘ | ‘cd‘ | 1; 2 3 function testFun(arg1: testName){ 4 5 } 6 testFun(‘lx‘); //正确 7 testFun(1); //正确 8 testFun(‘ll‘); //错误
时间:2022-05-11 07:04
1 type testName = ‘lx‘ | ‘bj‘ | ‘cd‘ | 1; 2 3 function testFun(arg1: testName){ 4 5 } 6 testFun(‘lx‘); //正确 7 testFun(1); //正确 8 testFun(‘ll‘); //错误