JSON find the Last index of an object

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JSON find the Last index of an object

In the following example, we will find the last index of an object in an array with a name property is equal to 'Danny'.


HTML Editor
<!DOCTYPE html> <html lang="en-US"> <body> <h1>JSON findLastIndex</h1> <button onclick="myFunction()">Click Me</button> <script> var data = [ { "name": "Danny", "age": 25 }, { "name": "Mike", "age": 25 }, { "name": "Danny", "age": 18 } ] var myIndex = -1; function myFunction(){ for(var i = 0; i < data.length; i++){ if (data[i].name == "Danny") myIndex = i; } console.log(myIndex); } </script> </body> </html>


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