Function initObservable

packages/mobx/src/types/type-utils.ts:108–119

(cb: () => T)

 * 3. batch to avoid state version updates
 */
export function initObservable<T>(cb: () => T): T {
    const derivation = untrackedStart()
    const allowStateChanges = allowStateChangesStart(true)
    startBatch()
    try {
        return cb()
    } finally {
        endBatch()
        allowStateChangesEnd(allowStateChanges)
        untrackedEnd(derivation)
    }
}