SOURCE

// https://www.apiref.com/javascript-zh/Reference/Global_Objects/Number/toLocaleString.htm

const a = 12345678.23


// 数字分割  12,345,678.23
console.log(a.toLocaleString());

// 转化为百分号  1,234,567,823%
console.log(a.toLocaleString('zh', {
    style: 'percent'
}));

// 货币表示 ¥12,345,678.23
console.log(a.toLocaleString('zh', {
    style: 'currency',
    currency: 'cny'
}));

// 货币表示 CNY 12,345,678.23
console.log(a.toLocaleString('zh', {
    style: 'currency',
    currency: 'cny',
    currencyDisplay: 'code'
}));

// 货币表示 12,345,678.23人民币
console.log(a.toLocaleString('zh', {
    style: 'currency',
    currency: 'cny',
    currencyDisplay: 'name'
}));