编辑代码

var a = 1
if (a>2){
    console.log('该数智太大了');
} else if (a===1){
    console.log('该数值正好');
} else{
    console.log('该数值小了');
}

var non = NaN
var a = 0.0000001
var b = Math.abs(2/3)
if (a<b){
    console.log(isNaN(non))
}
console.log(b)