var uncurryThis = require('../internals/function-uncurry-this'); var $Error = Error; var replace = uncurryThis(''.replace); var TEST = (function (arg) { return String($Error(arg).stack); })('zxcasd'); var V8_OR_CHAKRA_STACK_ENTRY = /\n\s*at [^:]*:[^\n]*/; var IS_V8_OR_CHAKRA_STACK = V8_OR_CHAKRA_STACK_ENTRY.test(TEST); module.exports = function (stack, dropEntries) { if (IS_V8_OR_CHAKRA_STACK && typeof stack == 'string' && !$Error.prepareStackTrace) { while (dropEntries--) stack = replace(stack, V8_OR_CHAKRA_STACK_ENTRY, ''); } return stack; };