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How can I find the index of a 2d array of objects in JavaScript?
To find the index of a two-dimensional array of objects, use two for loops, one for row and another for column. Following is the code −
Example
function matrixIndexed(details, name) {
var r;
var c;
for (r = 0; r < details.length; ++r) {
const nsDetails = details[r];
for (c = 0; c < nsDetails.length; ++c) {
const tempObject = nsDetails[c];
if (tempObject.studentName === name) {
return { r, c};
}
}
}
return {};
}
const details = [
[
{studentName: 'John'}, {studentName:'David'}
],
[
{studentName:"Mike"},{studentName:'Bob'},{studentName:'Carol'}
]
];
var {r, c } = matrixIndexed(details, 'Bob');
console.log(r, c);To run the above program, you need to use the following command −
node fileName.js.
Output
Here, my file name is demo160.js. This will produce the following output −
PS C:\Users\Amit\JavaScript-code> node demo160.js 1 1
Updated on 12-Sep-2020 07:48:55
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