where should I write an instance method such as vm.$watch if I want to call it?
<script>
export default {
name: "componentA",
data () {
/*****/
},
methods: {
methodA: function () {
/*****/
}
}
};
</script>
where should I write an instance method such as vm.$watch if I want to call it?
<script>
export default {
name: "componentA",
data () {
/*****/
},
methods: {
methodA: function () {
/*****/
}
}
};
</script>if you are not clicking, you can write it directly in computed or life cycle, but it is not recommended that created, use mounted
<script>
export default {
name: 'componentA',
data () {
text: '123',
/*****/
},
watch: {
text() {
console.log(text)
}
}
methods: {
methodA: function () {
/*****/
}
}
};
</script>can be adjusted in methods, computed, or lifecycle hook functions. In principle, you can access the this (vm) instance anywhere.
<script>
export default {
name: 'componentA',
data () {
/*****/
param:'test'
},
computed:{
param2(val){
//
this.$set('param', val)
return val + this.param
}
},
created(){
//
this.$watch('param',(n,o) => {})
},
methods: {
methodA: function () {
/*****/
// methods
this.$watch('param',(n,o) => {})
}
}
};
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