vue deep watch
watch: {
colors: {
handler(newValue){
console.log('colors changed', newValue)
}, deep: true
}
}vue deep watch
watch: {
colors: {
handler(newValue){
console.log('colors changed', newValue)
}, deep: true
}
}vue watch deep
export default {
name: 'ColorChange',
props: {
colors: {
type: Array,
required: true,
},
},
watch: {
colors: {
// This will let Vue know to look inside the array
deep: true,
// We have to move our method to a handler field
handler(value) {
console.log('The list of colors has changed!', value);
}
}
}
}vue watch deep property
watch: {
item: {
handler(val){
// do stuff
},
deep: true
}
}vue watch child property
...
watch:{
'item.someOtherProp'(newVal){
//to work with changes in "myArray"
},
'item.prop'(newVal){
//to work with changes in prop
}
}using the watch method to monitor route updates in vue
watch: {
// Whenever the movie prop changes, fetch new data
movie {
handler: 'fetchData'
},
// Whenever the actor changes, we'll call the same method
actor: {
handler: 'fetchData',
}
},
methods: {
// Fetch data about the movie
fetchData() {
fetch(`/${this.movie}/${this.actor}`).then((data) => {
this.movieData = data;
});
}
}Copyright © 2021 Codeinu
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