I'm trying to add a series of values to a nested object, having some trouble with the loop in the following code. Any help would be really appreciated.
let settings = {};
function write(id, values) {
if(!settings[id]) settings[id] = {};
for(var x = 0; x < Object.keys(values).length; x ++) {
settings[id][values[x]] = values[values[x]];
}
}
//example
write('example', {'prop1': 5, 'prop2': 10});
You're attempting to index the object values with x, which is a number. To loop through the keys of your object you can use a for...in loop:
function write(id, values) {
if(!settings[id]) settings[id] = {};
for(const key in values) {
settings[id][key] = values[key];
}
}
Another approach would be to use object destructuring:
function write(id, values) {
settings[id] = { ...(settings[id] || {}), ...values };
}
values is an object. Accessing values[x] will return undefined.
You have to access it with the correct keys in that object as below.
let settings = {};
function write(id, values) {
if (!settings[id]) settings[id] = {};
const keys = Object.keys(values);
for (var x = 0; x < keys.length; x++) {
settings[id][keys[x]] = values[keys[x]];
}
console.log(settings)
}
//example
write('example', { 'prop1': 5, 'prop2': 10 });try to keep the Object.keys(values) return in another variable and use it to assign value in setting like this
function write(id, values) {
if(!settings[id]) settings[id] = {};
const key = Object.keys(values)
for(var x = 0; x < key.length; x ++) {
settings[id][key[x]] = values[key[x]];
}
}