一丁溅、普通監(jiān)聽略過
二、監(jiān)聽數(shù)組
data() {
return {
arrData:[1,1,1,1,1,1]
}
},
watch: {
arrData: {
handler(newVal, oldVal) {
for (let i = 0; i < newVal.length; i++) {
if (oldVal[i] != newVal[i]) {
console.log(newVal)
}
}
},
deep: true
}
}
三探遵、監(jiān)聽對(duì)象
data() {
return {
objData: {
title: 'test',
content:'test'
}
}
},
watch: {
objData: {
handler(newVal, oldVal) {
console.log(newVal)
},
deep: true
}
}
