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jiapengyu
2026-07-27 13:37:48 +08:00
commit ecba71e2a5
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'use strict';
var $ = require('../internals/export');
// eslint-disable-next-line es/no-math-asinh -- required for testing
var $asinh = Math.asinh;
var log = Math.log;
var sqrt = Math.sqrt;
var LN2 = Math.LN2;
// sqrt(2 ** 53) - prevent n * n overflow
var SQRT_2_POW_53 = 94906265.62425156;
function asinh(x) {
var n = +x;
return !isFinite(n) || n === 0 ? n : n < 0 ? -asinh(-n) : n > SQRT_2_POW_53 ? log(n) + LN2 : log(n + sqrt(n * n + 1));
}
var FORCED = !($asinh && 1 / $asinh(0) > 0);
// `Math.asinh` method
// https://tc39.es/ecma262/#sec-math.asinh
// Tor Browser bug: Math.asinh(0) -> -0
$({ target: 'Math', stat: true, forced: FORCED }, {
asinh: asinh
});