Source code

// Paste your JavaScript code here function hi() { console.log("Hello World!"); } hi();

Obfuscated code (default obfuscation settings used)

function _0x2258(){var _0x43bd84=['607150VwkcPH','875726lkSxRi','271698iGCpUj','776jJcXcO','51758JmSbvr','3520FXkMak','3844XfOikj','45Ssnrjo','3SakWBe','819127MSDUAo','Hello\x20World!','log','37905439HRFQhR'];_0x2258=function(){return _0x43bd84;};return _0x2258();}function _0x3c34(_0x4b026f,_0x2f97cf){var _0x2258d8=_0x2258();return _0x3c34=function(_0x3c34ff,_0xea61be){_0x3c34ff=_0x3c34ff-0x183;var _0x14fb0c=_0x2258d8[_0x3c34ff];return _0x14fb0c;},_0x3c34(_0x4b026f,_0x2f97cf);}(function(_0x5202db,_0x163c0b){var _0x5a36d6=_0x3c34,_0x40bbc7=_0x5202db();while(!![]){try{var _0x42e468=-parseInt(_0x5a36d6(0x184))/0x1+-parseInt(_0x5a36d6(0x189))/0x2*(parseInt(_0x5a36d6(0x183))/0x3)+-parseInt(_0x5a36d6(0x18e))/0x4*(parseInt(_0x5a36d6(0x18d))/0x5)+parseInt(_0x5a36d6(0x18a))/0x6+parseInt(_0x5a36d6(0x18c))/0x7*(-parseInt(_0x5a36d6(0x18b))/0x8)+parseInt(_0x5a36d6(0x18f))/0x9*(-parseInt(_0x5a36d6(0x188))/0xa)+parseInt(_0x5a36d6(0x187))/0xb;if(_0x42e468===_0x163c0b)break;else _0x40bbc7['push'](_0x40bbc7['shift']());}catch(_0x27e119){_0x40bbc7['push'](_0x40bbc7['shift']());}}}(_0x2258,0x83149));function hi(){var _0x4b68f6=_0x3c34;console[_0x4b68f6(0x186)](_0x4b68f6(0x185));}hi();

Getting 'invalid obfuscation type' with any target function (tested hi and _0x2258) and 'Server error! Please check target code and name of target function.' when tryed _0x3c34 as target function

In fact I need to deobfuscate much bigger script, but get same problem :)