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mongodb connection using bluebrid problem

mongoClient.connectAsync('mongodb://localhost:27017/prathip/')
^
TypeError: mongoClient.connectAsync is not a function
at Object. (C:\Users\Gnana prahaasam SR\Desktop\Gnana prahaasam SR\Bluebird.js:19:13)
at Module._compile (node:internal/modules/cjs/loader:1159:14)
at Module._extensions..js (node:internal/modules/cjs/loader:1213:10)
at Module.load (node:internal/modules/cjs/loader:1037:32)
at Module._load (node:internal/modules/cjs/loader:878:12)
at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:82:12)
at node:internal/main/run_main_module:23:47
Please help any one to solve this problem

you should add this :
mongodb://0.0.0.0:27017/your-database
Because of the new update you need to add the 0.0.0.0
so you can access your database

DateFormat.js SyntaxError: Unexpected token export

Using this with some Kubernetes PODS and one of the pods out of the blue gives me this error. It seems to come from the call on line 6. Have not changed anything was just doing a deployment on gitlab and noticed this POD said CrashLoopBackOff.
/app/config/auth.js line 6
var dateFormat = require('dateformat');
My nodemodules folder has the latest dateFormat.js from package.json
So not sure what the problem is. Does someone know how to fix it?
var token=/d{1,4}|D{3,4}|m{1,4}|yy(?:yy)?|([HhMsTt])\1?|W{1,2}|[LlopSZN]|"[^"]*"|'[^']*'/g;var timezone=/\b(?:[A-Z]{1,3}[A-Z][TC])(?:[-+]\d{4})?|((?:Australian )?(?:Pacific|Mountain|Central|Eastern|Atlantic) (?:Standard|Daylight|Prevailing) Time)\b/g;var timezoneClip=/[^-+\dA-Z]/g;export default function dateFormat(date,mask,utc,gmt){if(arguments.length===1&&typeof date==="string"&&!/\d/.test(date)){mask=date;date=undefined}date=date||date===0?date:new Date;if(!(date instanceof Date)){date=new Date(date)}if(isNaN(date)){throw TypeError("Invalid date")}mask=String(masks[mask]||mask||masks["default"]);var maskSlice=mask.slice(0,4);if(maskSlice==="UTC:"||maskSlice==="GMT:"){mask=mask.slice(4);utc=true;if(maskSlice==="GMT:"){gmt=true}}var _=function _(){return utc?"getUTC":"get"};var _d=function d(){return date[_()+"Date"]()};var D=function D(){return date[_()+"Day"]()};var _m=function m(){return date[_()+"Month"]()};var y=function y(){return date[_()+"FullYear"]
SyntaxError: Unexpected token export
at Module._compile (internal/modules/cjs/loader.js:760:23)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:827:10)
at Module.load (internal/modules/cjs/loader.js:685:32)
at Function.Module._load (internal/modules/cjs/loader.js:620:12)
at Module.require (internal/modules/cjs/loader.js:723:19)
at require (internal/modules/cjs/helpers.js:14:16)
at Object.<anonymous> (/app/config/auth.js:6:18)
at Module._compile (internal/modules/cjs/loader.js:816:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:827:10)
at Module.load (internal/modules/cjs/loader.js:685:32)
at Function.Module._load (internal/modules/cjs/loader.js:620:12)
at Module.require (internal/modules/cjs/loader.js:723:19)
at require (internal/modules/cjs/helpers.js:14:16)
at Object.<anonymous> (/app/config/passport.js:8:18)
at Module._compile (internal/modules/cjs/loader.js:816:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:827:10)```

Was able to fix it by downloading an older version of dateformat. Nothing wrong with my code on the question its a simple problem with the library not the code come on.

Here I could make it work by using another version of this package,was working in the version 4.6.3, so I did:
npm i dateformat#4.6.3

JavaScript 'document' not working as a keyword

I have this code here in VSCode:
const form = document.querySelector('form');
The error I am getting is:
C:\Program Files\nodejs\node.exe boot.js
helloworld
c:\Users\frase\OneDrive\Desktop\html\boot.js:2
const form = document.querySelector('form');
^
ReferenceError: document is not defined
at Object.<anonymous> (c:\Users\frase\OneDrive\Desktop\html\boot.js:2:14)
at Module._compile (internal/modules/cjs/loader.js:1157:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1177:10)
at Module.load (internal/modules/cjs/loader.js:1001:32)
at Function.Module._load (internal/modules/cjs/loader.js:900:14)
at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:74:12)
at internal/main/run_main_module.js:18:47
Why is the document not working? The file name is referenced with the html file as <script src="boot.js"></script>
I have tried putting the script in the header and body tags.

document is available only when you are running javascript in a browser. It is not available by default.

Unexpected token ILLEGAL while running node.js mocha test

I have searched all over but have not figured out what I am doing wrong. I am trying to set up mocha for testing node.js javascript application files. I have node installed and have successfully ran basic things on it to confirm it is working.
I installed mocha in my project file, and also have a Makefile and a file called "test" within my project file as well.
Here is the error my terminal(osx 10) is spitting out when I run the command "make test".
humbleMousesMBP:chapter02 humbleMouse$ make test
/Users/humbleMouse/chapter02/test/exchange.test.js:22

^
SyntaxError: Unexpected token ILLEGAL
at Module._compile (module.js:439:25)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Module.require (module.js:364:17)
at require (module.js:380:17)
at /Users/humbleMouse/chapter02/node_modules/mocha/bin/_mocha:313:27
at Array.forEach (native)
at load (/Users/humbleMouse/chapter02/node_modules/mocha/bin/_mocha:310:9)
at Object.<anonymous> (/Users/humbleMouse/chapter02/node_modules/mocha /bin/_mocha:301:1)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Function.Module.runMain (module.js:497:10)
at startup (node.js:119:16)
at node.js:906:3
make: *** [test] Error 8
This is the test I am trying to run:
'use strict';
var assert = require('assert')
, should = require('should');
var exchangeData = {};
suite('exchange', function() {
test('buy should add a BUY nockmarket order', function(done) {
exchangeData = exchange.buy(40, 100, exchangeData);
exchangeData.buys.volumes[40].should.eql(100);
done();
});
test('sell should add a SELL nockmarket order', function(done) {
exchangeData = exchange.sell(41, 200, exchangeData);
exchangeData.sells.volumes['41'].should.eql(200); //this is line 22
done();
});

test('sell should produce trades', function(done) {
exchangeData = exchange.sell(40, 75, exchangeData);
exchangeData.trades[0].price.should.eql(40);
exchangeData.trades[0].volume.should.eql(75);
exchangeData.buys.volumes[40].should.eql(25);
exchangeData.sells.volumes[41].should.eql(200);
done();
});
});

There are some invalid characters in your code, if you used proper text editor, you'd see them. The line numbering is a bit off, but this is clearly the cause.
Here's a screenshot from Sublime Text:
It's \uFFFC, more info here.
Just delete them (they can't be seen, so delete all from the semicolon to the next test().

How to find the location of a javascript syntax error programmatically?

I am loading a Node.js module using require. This throws a Syntax Error (an Error object).
Is there a way to get the location in the file where the error occurred?
I can see the stack (below) but I don't have any location information. I know I can use substack's node-syntax-error, but is there a way to get similar location info from the Javascript Error object?
SyntaxError: Unexpected identifier
at Module._compile (module.js:437:25)
at Object.Module._extensions..js (module.js:467:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Module.require (module.js:362:17)
at require (module.js:378:17)
... // the rest is in my code
EDIT:
According to Vadim's comment below, yes that is what I am tempted to do. I see that node throws nice errors. Having a test.js file that contains only abc you get an error from node saying
ReferenceError: abc is not defined
at Object.<anonymous> (test.js:1:63)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Function.Module.runMain (module.js:497:10)
at startup (node.js:119:16)
at node.js:901:3
Now the question is, is there a node API to do get this error (that the node module.js module uses) such that I don't have to child_process.spawn('node', ['test.js'])?

You can simple run node with file that contains SyntaxError and see console output.

Error.stack
Errors have a "stack" property that stores the stack trace.
try {
throw new Error("with some message");
}
catch(err) {
// print error's stack trace to stder
console.error(err.stack);
}
running this on a file called "/home/myusername/test.js"
node /home/myusername/test.js
will output the following
Error: with some message
at Object.<anonymous> (/home/myusername/test.js:2:11)
at Module._compile (module.js:449:26)
at Object.Module._extensions..js (module.js:467:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Module.runMain (module.js:492:10)
at process.startup.processNextTick.process._tickCallback (node.js:244:9)

#laconbass answer works for me.
err.stack
I tried a blog framework and I got : 500 Internal Server Error. Hopefully I put a console :
app.use(function(error, req, res, next) {
res.status(500).render('500');
console.log(error);
});
and I could see the error which was not descriptive:
TypeError: Cannot read property 'replace' of undefined
After several minuts of research I found this answers, So I tried :
app.use(function(error, req, res, next) {
res.status(500).render('500');
console.log(error.stack);
});
and I could see the source point of error : (Object.exports.replace)
TypeError: Cannot read property 'replace' of undefined
at Object.exports.replace (/.../some_folder/node.js-blog-engine/node_modules/swig/lib/filters.js:411:15)
at eval (eval at <anonymous> (/.../some_folder/node.js-blog-engine/node_modules/swig/lib/swig.js:498:13), <anonymous>:41:63)
at Object.exports.each (/.../some_folder/node.js-blog-engine/node_modules/swig/lib/utils.js:45:11)
at eval (eval at <anonymous> (/.../some_folder/node.js-blog-engine/node_modules/swig/lib/swig.js:498:13), <anonymous>:26:10)
at Object.eval [as tpl] (eval at <anonymous> (/.../some_folder/node.js-blog-engine/node_modules/swig/lib/swig.js:498:13), <anonymous>:85:3)
at compiled (/.../some_folder/node.js-blog-engine/node_modules/swig/lib/swig.js:619:18)
at /.../some_folder/node.js-blog-engine/node_modules/swig/lib/swig.js:559:20
at /.../some_folder/node.js-blog-engine/node_modules/swig/lib/swig.js:690:9
at FSReqWrap.readFileAfterClose [as oncomplete] (fs.js:380:3)
I know that this is not a syntax error, but could be works to find the location of a javascript/node error.
I am a novice in nodejs.
I hope this helps.

You can use the stacktracey library (note: I'm the author of this library).
It prints nice callstacks along with source code lines, and also parses the SyntaxError output (in Node higher than v4).
For example, when trying to require this file (named test_files/syntax_error.js):
// next line contains a syntax error (not a valid JavaScript)
foo->bar ()
...the pretty printed call stack for the error thrown would be:
at (syntax error) test_files/syntax_error.js:2 foo->bar ()
at it test.js:184 try { require ('./test_files/syntax_error.js') }
at runCallback timers.js:781
at tryOnImmediate timers.js:743
at processImmediate [as _immediat timers.js:714
...where the first line is generated from parsing the raw output from the util.inspect call in Node.
The library also provides the full API access to the contents of a parsed call stack, so you can tune the output to whatever you want.