breakdown
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process.stdin.setEncoding('utf8'): This sets the encoding of the standard input stream to UTF-8, allowing you to read text input.
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process.stdin.on('data', data => {...}): This event listener is triggered whenever data is received from standard input. Inside the event handler function, you split the input data to extract the two numbers.
이 이벤트 리스너는 표준 인풋에서 데이터를 받을 때마다 작동한다. 이벤트 핸들러 함수 내에서 2개의 숫자로 나올 수 있도록 input data를 쪼갠다
3.const row = '*'.repeat(a): You create a string of asterisks that will represent a row in the grid. The number of asterisks in the row is determined by the value of 'a'.
- for (let i = 0; i < b; i++) {...}: You use a loop to iterate b itmes (the number of rows in the grid). In each iteration, you print the row string, which contains a asterisks.
결론
Overall, this code should achieve the goal of printing a grid of asterisks where the number of rows in determined by b and the number of asterisks in each row is determined by 'a'.
행의 수는 b에 의해 결정되고, 각 행의 별 모양의 수는 a에 의해 결정된다.
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The ilne 'const a = Number(n[0]), b = Number(n[1])' is used to convert the first and second elements of the array 'n' into numbers and assign them to the variables 'a' and 'b', respectively.
++ breakdown
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'n[0]' refers to the first element of the array 'n', which is a string representing the first input number.
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8n[1]' refers to the second element of the array 'n', which is a string representing the second input number.
