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node_modules/core-js/modules/es.math.tanh.js

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+'use strict';
+var $ = require('../internals/export');
+var expm1 = require('../internals/math-expm1');
+
+var exp = Math.exp;
+
+// `Math.tanh` method
+// https://tc39.es/ecma262/#sec-math.tanh
+$({ target: 'Math', stat: true }, {
+  tanh: function tanh(x) {
+    var n = +x;
+    var a = expm1(n);
+    var b = expm1(-n);
+    return a == Infinity ? 1 : b == Infinity ? -1 : (a - b) / (exp(n) + exp(-n));
+  }
+});