Problems with global variable Javascript and jQuery

Question

So I am trying to make script when u press for example "1" then click mouse to send position of cursor, but i have problems with global variables and functions namely with mX and mY

$('#A').on("mousemove", function (e) {  mX = e.pageX });
$('#A').on("mousemove", function (e) {  mY = e.pageY });
...
else if (code == 49) {f(vX, vY, mX, mY);}
...
function f(vX, vY, mX, mY) {
$('#A').click(function (e) {
    var dX = Math.abs(vX - mX); <<< Here is the problem the mX is not defined
    var dY = Math.abs(vY - mY);
});

The problem line i singed as <<< i can't come with up how to solve it, i have make the variables in function to global.

Do not pay attention about code, vX, vY theese variables are working fine!

You realize you can get pageX and pageY in the click handler ? — adeneo
– adeneo, Commented Dec 13, 2014 at 21:25
Oh man, thats a lots of line of code that working together, i will do this tomorrow, now i am not able to do this, Sorry — Szarik
– Szarik, Commented Dec 13, 2014 at 21:25
Oh, its looks like i am very silly, i will try it tomorrow, Thanks man — Szarik
– Szarik, Commented Dec 13, 2014 at 21:35

Community · Accepted Answer · 2017-05-23 11:57:52Z

0

Please, refer to How to pass argument to a jquery function through an onClick event?

function f(vX, vY, mX, mY) {
    $('#A').click({mX:mX, mY:mY}, function (e) {
        var dX = Math.abs(vX - e.data.mX);
        var dY = Math.abs(vY - e.data.mY);
    });

hope that's good for you

bye

edited May 23, 2017 at 11:57

CommunityBot

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answered Dec 13, 2014 at 21:36

gaetanoM

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1 Comment

Felix Kling Over a year ago

I guess that's not good enough since the event handler only has access to the values that mX and mY had at the moment the handler was bound.

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