@tabular-json/tabular-json/lib/objects.js

Tabular-JSON: a superset of JSON with CSV-like tables

// The utils are largely copied from:
// - https://github.com/josdejong/csv42
export function isObject(value) {
    return typeof value === 'object' && value !== null && value.constructor === Object; // do not match on classes or Array
}
export function getIn(object, path) {
    let value = object;
    let i = 0;
    while (i < path.length && value !== undefined) {
        value = value?.[path[i]];
        i++;
    }
    return value;
}
export function setIn(object, path, value) {
    let nested = object;
    const iLast = path.length - 1;
    let i = 0;
    while (i < iLast) {
        const part = path[i];
        if (nested[part] === undefined) {
            if (typeof path[i + 1] === 'number') {
                nested[part] = [];
            }
            else {
                nested[part] = {};
            }
        }
        nested = nested[part];
        i++;
    }
    nested[path[iLast]] = value;
    return object;
}
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