azure-devops-ui/Core/Util/Object.js

React components for building web UI in Azure DevOps

const CURRENT_ID_PROPERTY = "__currentIdProp__";
const DEFAULT_ID_STRING = "id__";
const global = (typeof window !== "undefined" && window) || process;
if (global[CURRENT_ID_PROPERTY] === undefined) {
    global[CURRENT_ID_PROPERTY] = 0;
}
function checkProperties(a, b) {
    for (const propName in a) {
        if (a.hasOwnProperty(propName)) {
            if (!b.hasOwnProperty(propName) || b[propName] !== a[propName]) {
                return false;
            }
        }
    }
    return true;
}
/**
 * Generates a unique id in the global scope (this spans across duplicate copies of the same library.)
 *
 * @public
 */
export function getId(prefix) {
    const index = global[CURRENT_ID_PROPERTY]++;
    return (prefix || DEFAULT_ID_STRING) + index;
}
/**
 * Resets id counter to an (optional) number.
 *
 * @public
 */
export function resetIds(counter = 0) {
    global[CURRENT_ID_PROPERTY] = counter;
}
/**
 * Compares a to b and b to a.
 *
 * @public
 */
export function shallowCompare(a, b) {
    // Handle the same object
    if (a === b) {
        return true;
    }
    if (!a || !b) {
        return false;
    }
    return checkProperties(a, b) && checkProperties(b, a);
}