@rimbu/common/dist/cjs/update.cjs

Common types and objects used in many other Rimbu packages

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Update = void 0;
/**
 * Returns the result of given `update` parameter, where it can either directly give a new value,
 * or it is a function receiving the given `value`, and returns a new value.
 * @param value - the current value
 * @param update - an `Update` value, either a new value or a function receiving the old value
 * and returning a new one.
 * @example
 * ```ts
 * Update(1, 2)          // => 2
 * Update(1, () => 10)   // => 10
 * Update(1, v => v + 1) // => 2
 * ```
 */
function Update(value, update) {
    if (typeof update === 'function') {
        return update(value);
    }
    return update;
}
exports.Update = Update;
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