import knockout from "../ThirdParty/knockout.js";
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/**
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* Subscribe to a Knockout observable ES5 property, and immediately fire
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* the callback with the current value of the property.
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*
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* @private
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*
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* @function subscribeAndEvaluate
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*
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* @param {Object} owner The object containing the observable property.
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* @param {String} observablePropertyName The name of the observable property.
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* @param {Function} callback The callback function.
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* @param {Object} [target] The value of this in the callback function.
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* @param {String} [event='change'] The name of the event to receive notification for.
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* @returns The subscription object from Knockout which can be used to dispose the subscription later.
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*/
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function subscribeAndEvaluate(
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owner,
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observablePropertyName,
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callback,
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target,
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event
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) {
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callback.call(target, owner[observablePropertyName]);
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return knockout
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.getObservable(owner, observablePropertyName)
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.subscribe(callback, target, event);
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}
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export default subscribeAndEvaluate;
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