5 examples of 'update object in array javascript' in JavaScript

Every line of 'update object in array javascript' code snippets is scanned for vulnerabilities by our powerful machine learning engine that combs millions of open source libraries, ensuring your JavaScript code is secure.

All examples are scanned by Snyk Code

By copying the Snyk Code Snippets you agree to
70function updateArray(array) {
71 var changeListener = collectionListener(array);
72 var listener = observe(array, changeListener);
73 array.silentSplice = function () {
74 listener();
75 var res;
76 runInAction(() => { res = array.splice.apply(array, arguments) });
77 listener = observe(array, changeListener);
78 return res;
79 };
80}
44_addArrayItem() {
45 const newId = Math.round(Math.random() * 100);
46 const newItem = { id: newId };
47 this.myArray = [
48 ...this.myArray,
49 newItem,
50 ];
51
52 /**
53 * An alternative method is to mutate the array and then call
54 * requestUpdate() to notify LitElement the property changed.
55 */
56 // this.myArray.push(newItem);
57 // this.requestUpdate();
58}
18updateArray (key, value) {
19 const array = this.props[formDataProp][key]
20 const index = array.indexOf(value)
21
22 if (array.indexOf(value) > -1) {
23 array.splice(index, 1)
24 } else {
25 array.push(value)
26 }
27}
9function insertIntoArray(array: T[], object: T): T[] {
10 return array ? [object, ...array] : [object];
11}
7function updateArrayEntry(
8 array: Array,
9 scope: number | string,
10 newVal: any
11): Array {
12 if (newVal === array[scope]) {
13 return array;
14 }
15 const index = parseInt(scope as string);
16 if (typeof newVal === 'undefined') {
17 return array.filter((_val, i) => i !== index);
18 }
19 return array.map((val, i) => (i === index ? newVal : val));
20}

Related snippets