js怎么识别负数和正数

let number = -5;if (number 

let number = -5;if (Number.isNegative(number)) {  console.log("该数字为负数");} else {  console.log("该数字为正数");}

let number = -5;if (number  0) {  console.log("该数字为正数");} else {  console.log("该数字为 0");}