Looking to monitor a set of data elements for changes and then save them in localStorage. Is there an easy way to achieve this?
Looking to monitor a set of data elements for changes and then save them in localStorage. Is there an easy way to achieve this?
To achieve this, you should utilize Vue.js watchers.
<script>
const MyComponent = {
name: 'MyComponent',
data() {
myData: null,
},
watch: {
'myData': {
handler(newValue, oldValue) { // triggers when `myData` changes
this.myMethod();
},
immediate: true, // to run the handler on component creation
},
},
methods: {
myMethod() {
// perform actions with this.myData
}
}
</script>
Unfortunately, you must create a watcher for each data property you wish to monitor, even if they trigger the same function. To simplify this process, you can encapsulate your data within an object and then watch that object instead. Make sure to include deep: true in the watcher (similar to how we used immediate in the example above). This will track all changes within the object and execute the method accordingly.
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