const MAX_WIDTH = 7
let table = ''
for (let rhs = 1; rhs <= 9; rhs++) {
    for (let lhs = 1; lhs <= 9; lhs++) {
        if (lhs <= rhs) table += `${lhs}*${rhs}=${lhs * rhs}`.padEnd(MAX_WIDTH)
    }
    table += '\n'
}
console.log(table)

function row(num) {
	const numMap = {
		1: '一',
		2: '二',
		3: '三',
		4: '四',
		5: '五',
		6: '六',
		7: '七',
		8: '八',
		9: '九'
	}

	return new Array(num).fill(0).map((val, idx) => {
		const n = idx + 1
		const res = n * num
		const resStr = res > 9 ? numMap[String(res)[0]] + '十' + (numMap[String(res)[1]] || '') : numMap[res]
		return `${numMap[n]}${numMap[num]}${res < 10 ? '得' : ''}${resStr}`
	}).join('\t')
}


const table = new Array(9).fill(0).map((val, idx) => row(idx + 1)).join('\n')

console.log(table)

const multipleTable = () => {
  const base = [1, 2, 3, 4, 5, 6, 7, 8, 9];
  const multi = [];

  base.forEach((num) => {
    let result = "";
    multi.push(num);
    multi.forEach((n) => {
      result += `${n} * ${num} = ${n * num} \t`;
    });
    console.log(result);
  });
};

multipleTable();

function print(index) {
          const arr = Array.from({ length: index })
          let str = ''
          arr.forEach((_, i) => (str += (`\t${i + 1} * ${index} = ${(i + 1) * index}    `)))
          console.log(str)
          if (index === 9) return
          print(++index)
}
print(1)

console.log(`
1 * 1 = 1    
1 * 2 = 2    	2 * 2 = 4    
1 * 3 = 3    	2 * 3 = 6    	3 * 3 = 9    
1 * 4 = 4    	2 * 4 = 8    	3 * 4 = 12    	4 * 4 = 16    
1 * 5 = 5    	2 * 5 = 10    	3 * 5 = 15    	4 * 5 = 20    	5 * 5 = 25    
1 * 6 = 6    	2 * 6 = 12    	3 * 6 = 18    	4 * 6 = 24    	5 * 6 = 30    	6 * 6 = 36    
1 * 7 = 7    	2 * 7 = 14    	3 * 7 = 21    	4 * 7 = 28    	5 * 7 = 35    	6 * 7 = 42    	7 * 7 = 49    
1 * 8 = 8    	2 * 8 = 16    	3 * 8 = 24    	4 * 8 = 32    	5 * 8 = 40    	6 * 8 = 48    	7 * 8 = 56    	8 * 8 = 64    
1 * 9 = 9    	2 * 9 = 18    	3 * 9 = 27    	4 * 9 = 36    	5 * 9 = 45    	6 * 9 = 54    	7 * 9 = 63    	8 * 9 = 72    	9 * 9 = 81
`)

function ninenine () {
    let ret = '';
    for (let i = 1; i <= 9; i++) {
        for (let j = 1; j <= i; j++) {
            ret += `${j} × ${i} = ${j * i}  `;
        }
        ret += `\t\n`;
    }
    console.log(ret);
}
ninenine();

(function(deep) {
  let str = ''
  for (let i = 1; i <= deep; i++) {
    for (let j = 1; j <= i; j++) {
      str += `${j} x ${i} = ${j * i}`.padEnd(`${deep} x ${deep} = ${deep * deep}`.length + 2)
    }
    str += '\n'
  }
  console.log(str)
})(9)

function start() {
  const len = 9
  let output = ''
  let txt = ''
  for (let i = 1; i <= len; i++) {
    txt = ''
    for (let j = 1; j <= len; j++) {
      if (i <= j) {
        txt += `${i}*${j}=${i * j} `
      }
    }
    output += txt + '\n'
  }
  return output
}

console.log(start())

function getNumberTable(){
    for(let i = 1; i < 10 ; i++){
        let res = ''
        for(let j = 1 ; j <= i ; j++){
            res += `${j}*${i}=${i*j} `
        }
        console.log(res + '\n')
    }
}
getNumberTable()

function multipleTable () {
  let str = ''
  for (let i = 1; i <= 9; i++) {
    for (let j = 1; j <= i; j++) {
      str += `${j}*${i}=${j * i}`.padEnd(j === 1 ? 6 : 7)
    }
    str += '\n'
  }
  return str
}