I have my javascript code like this . Inside that I have an init() function and in that function I have an options JSON object and in that object I have a function defined as objectselected(). How I call that function in a button click event
I have tried like this WorkFlow.init().options.Objectselected() but it is not working,
var WorkFlow = {
connectionData: [],
selectedTouchpoints: [],
init: function () {
var options = {
palleteId: "myPaletteElement",
elementId: "playAreaContainer",
TextStoreList: ['One', 'Two', 'Three'],
LinkTextStoreList: $('#drpLinkType option').map(function () {
return this.text;
}).get(),
shapeList: ['RoundedRectangle', 'Circle', 'Rectangle', 'Ellipse', 'Square', 'Diamond', 'Card', 'Database'],
diagramUpdate: function (e) {
},
objectSelected: function (e) {
},
linkUpdate: function (e) {
},
initialize: function () {
}
myGraph = new Graph(options);
options.initialize();
},
}
How to call that function.
You need to return options
as it is inside init function's scope
var WorkFlow = {
connectionData: [],
selectedTouchpoints: [],
init: function () {
var options = {
palleteId: "myPaletteElement",
elementId: "playAreaContainer",
TextStoreList: ['One', 'Two', 'Three'],
LinkTextStoreList: $('#drpLinkType option').map(function () {
return this.text;
}).get(),
shapeList: ['RoundedRectangle', 'Circle', 'Rectangle', 'Ellipse', 'Square', 'Diamond', 'Card', 'Database'],
diagramUpdate: function (e) {
},
objectSelected: function (e) {
},
linkUpdate: function (e) {
},
initialize: function () {
}
myGraph = new Graph(options);
options.initialize();
return options;
},
}
And call it as WorkFlow.init().objectSelected();
One way around is you can return options and than call it.
init: function () {
var options = {
...your code..}
return options;
},
and call it than
var options = WorkFlow.init();
options.Objectselected();
Building on Patrick's comment, you'd need to return options
from the init
function:
var WorkFlow = {
connectionData: [],
selectedTouchpoints: [],
init: function () {
var options = {
palleteId: "myPaletteElement",
...
options.initialize();
return options;
},
}
As it stands, you have no access to options
because it's a local variable - that is, local to its scope.
To access its contents, you'll need to return it from init()
.
Think about it:
WorkFlow.init()
Currently this returns undefined
, because your init()
returns nothing. You're trying to chain like in jQuery, but that relies on the API always returning the instance. Your path finds a dead-end at init()
.
To fix this, have init()
return options
- or at least the part of it you want to access from outside - an "export".
So (basic example)
init: function() {
var options {
my_func: function() { }, //<-- we want outside access to this
private: 'blah' //<-- this can stay private - leave it out of the export
}
//return an export, exposing only what we need to
return {
my_func: options.my_func
}
}
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