22 lines
573 B
JavaScript
22 lines
573 B
JavaScript
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var fails = require('../internals/fails');
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var replacement = /#|\.prototype\./;
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var isForced = function (feature, detection) {
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var value = data[normalize(feature)];
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return value == POLYFILL ? true
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: value == NATIVE ? false
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: typeof detection == 'function' ? fails(detection)
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: !!detection;
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};
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var normalize = isForced.normalize = function (string) {
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return String(string).replace(replacement, '.').toLowerCase();
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};
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var data = isForced.data = {};
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var NATIVE = isForced.NATIVE = 'N';
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var POLYFILL = isForced.POLYFILL = 'P';
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module.exports = isForced;
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