코드잇10 2023-05-08 javascript let before=1, after=1, sum=0; for (let i=1;i 2023. 5. 8. 2023-05-07 javascript When we define funtion, if we do not write 'return statement', then function returns 'undefined' value. We can assign some values to parameters. function introduce(name, age, nationality='South Korea'){ } We call these parameters as optional parameters. Optional parameters should be defined last like the example. We should define constant variable like this const MY_NUM = 1; We can select same c.. 2023. 5. 7. 이전 1 2 3 다음
