applyTrace

Applies tracedFabric mutations to the given value. The value should have the same state as the traceFabric value before allied mutations.

WARNING

This function mutates the value directly.

Demo

Following the previous example from traceFabric demo, here is an extended one with applyTrace function in use.

---

Todo list (as JS object)

[
  {
    "name": "📝 Add todo items",
    "done": false
  }
]

Trace (all mutations of the todoList)

[]

---

The trace will be cleared after applying the changes. All changes made to the todo list will be applied to the non-traced todo list. Please note that initial state of the non-traced todo list is not the same as the traced one.

Copy of the Todo List (non-traced)

[
  {
    "name": "📝 Add todo items",
    "done": false
  }
]

Arguments

• value - the object to which the trace will be directly applied.
• trace - the trace (array of mutations) to apply to the given value.

Example

const fabric = traceFabric({
  season: 'winter',
  besetDays: [12, 15, 17],
});
const target = {
  season: 'winter',
  besetDays: [12, 15, 17],
};

target.season = 'summer';
target.besetDays.push(20);

applyTrace(target, fabric.trace);

console.log(target);
// {
//   season: "summer",
//   besetDays: [ 12, 15, 17, 20 ],
// }