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20 lines
752 B
JavaScript
20 lines
752 B
JavaScript
"use strict";
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var functionName = require("./function-name");
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module.exports = function className(value) {
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return (
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(value.constructor && value.constructor.name) ||
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// The next branch is for IE11 support only:
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// Because the name property is not set on the prototype
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// of the Function object, we finally try to grab the
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// name from its definition. This will never be reached
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// in node, so we are not able to test this properly.
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// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/name
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(typeof value.constructor === "function" &&
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/* istanbul ignore next */
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functionName(value.constructor)) ||
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null
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);
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};
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