I am new to nodejs, and I am trying to get the difference between 2 times, but I get a different value.
here is my code :
var now = moment(Suivi.FI);
var then = moment(Suivi.DI);
var TA = moment(moment.duration(then.diff(now))).format("hh:mm");
as a result i get:
sql": "Insert into suivi(date, equipement, project, shift, description, Action, user, DA, DI, FI,TA) values('','','','','','','','','','','12:00')"
I tried to test with a simple date but I got the same value.
what am I missing? what should I do.?
you can use .format("hh:mm")
for simple time differnce:
var TA = now.diff(then);
this will give you more flexibility for formating (see docs):
var TA = moment.duration(now.diff(then));
Related
I'm trying to create a calculated column indicating if a team has a prize or not from the table below:
To do that I need to count within the group if there's a player whose "Prize" field is not empty. Here's the 1st attempt:
Dax Formula:
=
Var Player_Same_Team = filter(Table4,Table4[Team]=earlier(Table4[Team]))
Var Has_Prize = len(Table4[Prize])>0
Return
calculate(countrows(filter(Table4,len(Table4[Prize])>0)),Player_Same_Team)>0
Looks like it's going what I intend it to do. However, when I swap the filter content to a pre-defined variable, it gave me results that don't make sense:
Dax Formula:
=
Var Player_Same_Team = filter(Table4,Table4[Team]=earlier(Table4[Team]))
Var Has_Prize = len(Table4[Prize])>0
Return
calculate(countrows(filter(Table4,Has_Prize)),Player_Same_Team)>0
The typed content len(Table4[Prize])>0 is the same as that in the variable, so what may be causing the difference? Thanks for your help.
As soon as you assign it to a variable, the value of the variable remains constant. Therefore the Len is evaluated to a value, that you are then passing as a filter.
The first example works because the CALCULATE accepts a table as a parameter, and player_same_team is evaluated to a table, by using the FILTER expression.
In order for what you are trying to do to work it would have to be something like this:
= Var Player_Same_Team = filter(Table4,Table4[Team]=earlier(Table4[Team]))
Var Has_Prize = filter(Table4,len(Table4[Prize])>0)
Return calculate(countrows(Has_Prize),Player_Same_Team)>0
You can also write the measure in a slightly different way:
= CALCULATE ( COUNT(Table4[Team]),
ALLEXCEPT(Table4[Team]),
LEN(Table4[Prize])>0) > 0
I've recently started working through the book "The Definitive Guide to DAX", but got stuck at one of the examples.
Data in visual:
Delivery Date 01/08/2007
SalesAmount $7,530.881
TotalCost $3,947.08
GrossMargin $3,583.801
Var GrosMarg% 5.31*
(Link to picture of visual with data: https://drive.google.com/file/d/1Xv2irn53zftdu9qn1njtcreyOK8nKQkO/view?usp=sharing)
As you can see, Var GrosMarg% is not correct. It's definitely not 5%, or 530% (which I get when I format it as a %).
But I really see nothing wrong with my VAR calculation:
Var GrosMarg% =
VAR TotalSales = sum(Sales[SalesAmount])
VAR TotalCosts = sum(Sales[TotalCost])
VAR GrossMargin = TotalSales - TotalCosts
Return
GrossMargin / TotalSales
Your DAX logic is correct. The only problem I can think is that you are creating a Column instead of a Measure. If that the case the results should be diferent.
As an example I created a column and a measure so you can see the diference.
I'm trying to add new names to the address book programmatically but I'm getting the following error:
[TypeError] Exception occurred calling method NotesDocument.replaceItemValue(string, Array)
Unknown or unsupported object type in Vector
Code snippet below:
var addressBook = session.getDatabase("","names.nsf");
var gView:NotesView = addressBook.getView("($VIMGroups)");
var gDoc:NotesDocument = gView.getDocumentByKey("groupName", true);
var newg:java.util.Vector = [];
var mems:java.util.Vector = new Array(gDoc.getItemValue('Members'));
newg.push(mems);
var newNames:java.util.Vector = new Array(getComponent("NewMems").getValue());
newg.push(newNames);
gDoc.replaceItemValue("Members", newg);
gDoc.save();
Adding a single user works fine, but then it does not save users in the required canonical format below:
CN=John Doe/O=Org
Instead it is saved in the original format below:
John Doe/Org
I look forward to your suggestions. Thanks.
You can't store an Array in a field. Make newg a java.util.Vector instead and integrate with that.
For OpenNTF Domino API the team wrote a lot of code to auto-convert to Vectors, which may cover Arrays.
Don't use an Array (which is a JS thing). Initialize it as a Vector.
var newg:java.util.Vector = new java.util.Vectory();
Then look up the Vector methods to see how to add to that vector. Not sure if you will have to convert the names using the Name method but I would store them as "CN=Joe Smith/O=Test Org" to be sure you got the right format.
I was able to solve the issue using a forloop to loop through the list and push it into a newly created array. Using the forloop seems to make the difference.
var newg = [];
var group = new Array(getComponent("NewMems").getValue()), lenGA = group.length;
for(i = 0; i < lenGA; i++){
newg.push(group[i]);
}
gDoc.replaceItemValue("Members", newg);
gDoc.save();
An explanation about this behaviour will be appreciated.
I'm building a chess-related application using nodejs. I've been trying to use chess.js as much as I can but I think I've hit a roadblock in terms of functionality. Before extending that functionality, I wanted to make sure that there wasn't another tool that can do what I need.
I'm looking for a way to convert a PGN string into a list of FEN moves. I was hoping to use load_pgn() in chess.js to load the moves into the object and then loop over each move and invoke the fen() function to output the current FEN. However, chess.js doesn't seem to have a way to walk through the moves in a game. Unless I'm missing something.
I'd rather not have to get into parsing strings, but will if I have to. Any suggestions?
Solution:
also see efirvida's answer below for a solution
Something like this (untested) seems to work. The function accepts a Chess object created with chess.js that already has a PGN loaded into it.
function getMovesAsFENs(chessObj) {
var moves = chessObj.history();
var newGame = new Chess();
var fens = [];
for (var i = 0; i < moves.length; i++) {
newGame.move(moves[i]);
fens.push(newGame.fen());
}
return fens;
}
Take a look to the github page .load_pgn link
var chess = new Chess();
pgn = ['[Event "Casual Game"]',
'[Site "Berlin GER"]',
'[Date "1852.??.??"]',
'[EventDate "?"]',
'[Round "?"]',
'[Result "1-0"]',
'[White "Adolf Anderssen"]',
'[Black "Jean Dufresne"]',
'[ECO "C52"]',
'[WhiteElo "?"]',
'[BlackElo "?"]',
'[PlyCount "47"]',
'',
'1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Ba5 6.d4 exd4 7.O-O',
'd3 8.Qb3 Qf6 9.e5 Qg6 10.Re1 Nge7 11.Ba3 b5 12.Qxb5 Rb8 13.Qa4',
'Bb6 14.Nbd2 Bb7 15.Ne4 Qf5 16.Bxd3 Qh5 17.Nf6+ gxf6 18.exf6',
'Rg8 19.Rad1 Qxf3 20.Rxe7+ Nxe7 21.Qxd7+ Kxd7 22.Bf5+ Ke8',
'23.Bd7+ Kf8 24.Bxe7# 1-0'];
chess.load_pgn(pgn.join('\n'));
// -> true
chess.fen()
// -> 1r3kr1/pbpBBp1p/1b3P2/8/8/2P2q2/P4PPP/3R2K1 b - - 0 24
something like
moves = chess.history();
var chess1 = new Chess();
for (move in moves){
chess1.move(move);
fen = chess1.fen()
}
(Not really an answer; just a comment that needs extra formatting.)
Your getMovesAsFENs function might also be written as:
function getMovesAsFENs(chessObj) {
return chessObj.history().map(function(move) {
chessObj.move(move);
return chessObj.fen();
});
}
Perhaps it doesn't matter to you, but this appeals to my sense of neatness.
Here is an end to end answer with some ES6 sugar added in:
const Chess = require('chess.js').Chess;
const chess1 = new Chess();
const chess2 = new Chess();
const startPos = chess2.fen();
const pgn = `1.e4 c5 0-1`;
chess1.load_pgn(pgn);
let fens = chess1.history().map(move => {
chess2.move(move);
return chess2.fen();
});
//the above technique will not capture the fen of the starting position. therefore:
fens = [startPos, ...fens];
//double checking everything
fens.forEach(fen => console.log(fen));
"However, chess.js doesn't seem to have a way to walk through the
moves in a game. Unless I'm missing something.".
You are right (as I have read the entire library multiple times by now). And everything that needs to see back into the history is basically undoing and then redoing the moves, without some sort of real navigation integrated (it is an interesting choice to have it solved this way, with the pros of it being lighting fast for some tasks, but with the cons of being a real pain for other seemingly easier tasks like the one you need).
Disclaimer (I wrote the following tool), I have been creating a tool (isepic-chess.js) for the past 5+ years, something similar to chess.js and I think it's slowly getting there... The library stores the moves history in an object with information like (fen, from_square, to_square, san, etc.), and also have some kind of "cursor" with the move index and some move-navigation helpers.
So with isepic-chess.js you can just call the board method board.fenHistoryExport() to get the FEN list after you parse the PGN game:
var example_pgn = `[Event "m1 London"]
[Site "?"]
[Date "1861.07.??"]
[Round "9"]
[White "Kolisch, Ignatz"]
[Black "Anderssen, Adolf"]
[Result "0-1"]
[Annotator "JvR"]
[SetUp "1"]
[FEN "5r1k/pp4pp/3r3q/8/3PpP1P/1P2NbP1/PB1Q3K/R7 b - - 0 30"]
[PlyCount "13"]
[EventDate "1861.??.??"]
30... Rxf4 $1 {Anderssen starts fireworks.} 31. Qe1 (31.gxf4 $2 Qxh4+ 32.Kg1
Rg6+) 31... Rg6 (31...Rxh4+ $1 32.gxh4 Rg6 $1) 32. Bc1 (32.Ng2 $1) 32... Rxh4+
$1 33. gxh4 Qf4+ 34. Kh3 Bg2+ $1 35. Nxg2 Qf3+ 36. Kh2 Qxg2# { Anderssen won
the match by this mate (+4, =2, -3).} 0-1`;
var board = Ic.initBoard({
pgn : example_pgn
});
console.log(board.fenHistoryExport());
There is a more complete node.js example in the README.md with the const {Ic} = require("isepic-chess"); import thingy to have it running in node.js.
I'm using the JavaScript library datejs and in particularly the TimeSpan class.
I've got it all working great for one TimeSpan. However I need it to add together the results of multiple TimeSpans on the page. My code is below:
var monTimeSpan = new TimeSpan(Date.parse($("#monFinish").val()) - Date.parse($("#monStart").val()))
var tueTimeSpan = new TimeSpan(Date.parse($("#tueFinish").val()) - Date.parse($("#tueStart").val()))
These work great but I need to add the result of the Tuesday TimeSpan to the Monday one.
Any help would be great.
Thanks
The TimeSpan object includes the .add() function.
The following sample demonstrates adding two TimeSpan objects together.
Example
var t1 = new TimeSpan(Date.today().add(5).days() - Date.today());
var t2 = new TimeSpan(Date.today().add(10).days() - Date.today());
var total = t1.add(t2);
total.days // 15