JavaScript中的"x == a || b"和"x == a || x == b"等价语句？

Question

这些陈述如何相同？

var test ='one'

if( test == 'car' || 'one' ){
console.log('spo')
}

和

if( test == 'car' || test == 'one' ){
console.log('spo')
}

Answer 1

不,他们不等同.

if( test == 'car' || 'one' ){
    console.log('spo')
}

相当于

if( test == 'car' || 'one' != ''){
  console.log('spo')
}