how to change json key:value

Question

//my json data    
var jsndata = \"{ \"id\": \"5001\", \"type\": \"None\" },
            { \"id\": \"5002\", \"type\": \"Glazed\" },
            { \"id\": \"5005\",          


        

Answer 1

modified the function from above to be able to change all values of a key,and increment it by 1. And you can pass in the jsonObj

function replaceByValue( jsonObj, field, oldvalue, newvalue ) {
    for( var k = 0; k < jsonObj.length; ++k ) {
             jsonObj[k][field] = (newvalue *1)+k;

    }
    return jsonObj;
}

//example

var json = [{ "id": "5001", "type": "None" },
                { "id": "5002", "type": "Glazed" },
                { "id": "5005", "type": "Sugar" },
                { "id": "5003", "type": "Chocolate" },
                { "id": "5004", "type": "Maple" },
                { "id": "5009", "type": "Juice" }]; 


json; 

replaceByValue( json, "id", "na", 123 );

json;