I'm trying to create a function that will use multiple variables to select the correct nested object, and then be able to manipulate it.
var group1 = {
fred: {
debt: 5,
income: 2
},
suzy: {
debt: 3,
income: 5
}
},
group2 = {
molly: {
debt: 4,
income: 4
},
jason: {
debt: 6,
income: 1
}
};
function debtCheck(group, name) {
console.log(group.name.debt); ==>Uncaught TypeError: Cannot read property 'debt' of undefined
console.log(group[name].debt); ==>Uncaught TypeError: Cannot read property 'debt' of undefined
console.log([group][name].debt); ==>Uncaught TypeError: Cannot read property 'debt' of undefined
console.log([group[name]].debt); ==>undefined
}
debtCheck('group1', 'fred');
The goal would be to have it display 5 in the console. If I only do one variable, it works fine.
function debtCheck(name) {
console.log(group1[name].debt);
}
debtCheck('fred');
Hopefully I made it clear what I'm asking about. Thanks for the help!
Other thoughts I've had about it: Is it that the base object can't be a variable? Or you can't have two variables in a row?
You're passing the first argument as a string rather than the object. Try debtCheck(group1, 'fred');
. Also since the second param should be a string you need to access it via group[name].debt
.
Some background material to help you regarding the first point: passing values/references to a function ; and regarding the second point: working with objects .
var group1 = { fred: { debt: 5, income: 2 }, suzy: { debt: 3, income: 5 } }; var group2 = { molly: { debt: 4, income: 4 }, jason: { debt: 6, income: 1 } }; function debtCheck(group, name) { console.log(group[name].debt); } // debtCheck('group1', 'fred'); debtCheck(group1, 'fred');
Two things. You have group1
put in as a string and not an object. Second you can't use the dot notation when referencing objects by a specific variable name. You need to use square brackets.
Try:
function debtCheck(group, name) {
console.log(group[name].debt);
}
debtCheck(group1, 'fred');
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