20 lines
732 B
JavaScript
20 lines
732 B
JavaScript
/**
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* Extracts event handlers from a given object.
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* A prop is considered an event handler if it is a function and its name starts with `on`.
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*
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* @param object An object to extract event handlers from.
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* @param excludeKeys An array of keys to exclude from the returned object.
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*/
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export function extractEventHandlers(object) {
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var excludeKeys = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];
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if (object === undefined) {
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return {};
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}
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var result = {};
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Object.keys(object).filter(function (prop) {
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return prop.match(/^on[A-Z]/) && typeof object[prop] === 'function' && !excludeKeys.includes(prop);
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}).forEach(function (prop) {
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result[prop] = object[prop];
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});
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return result;
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} |