The arrays in JSON (JavaScript Object Notation) are similar to arrays in JavaScript. Arrays in JSON can have values of the following types:
The arrays in JavaScript can have all these but it can also have other valid JavaScript expressions which are not allowed in JSON. The array value of a JSON object can be modified. It can be simply done by modifying the value present at a given index.
Example: Modifying the value present at an index in the array
Javascript
let myObj, i;myObj = { // Stored the values "words": ["I", "am", "Good"]};// Modifying the value present at index 2myObj.words[2] = "bad";for (i in myObj.words) { // Displaying the modified content console.log(myObj.words[i]);} |
Output
I am bad
Note: If the value is modified at an index that is out of the array size, then the new modification will not replace anything in the original information but rather will be an add-on.
Example: Modifying the value of the index which is out of the array size.
Javascript
let myObj, i;myObj = { // Stored the values "words": ["I", "am", "Good"]};// Modifying the value present at index 2myObj.words[3] = "bad";for (i in myObj.words) { // Displaying the modified content console.log(myObj.words[i]);} |
Output
I am Good bad
