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FokkeZB/index.js

Last active November 5, 2015 17:15
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Checking for Titanium API objects
Raw
index.js
var jsObject = {
foo: 'bar'
};
var tiObject = Ti.UI.create2DMatrix();
function isJsObject(obj) {
return typeof obj.__proto__ !== 'undefined';
}
console.log('jsObject: ' + (isJsObject(jsObject) ? 'yes' : 'no'));
console.log('tiObject: ' + (isJsObject(tiObject) ? 'yes' : 'no'));
@yuchi
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yuchi commented Sep 22, 2014

Looks like that as an expression (or part of one) it returns undefined, but when passed around (assignment, or function invocation) is null.

@yuchi
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yuchi commented Sep 22, 2014

I feel stupid. _proto__ with one _…

@yuchi
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yuchi commented Sep 22, 2014 

function isJSObject(o) { return !!(o && o.__proto__ !== undefined); };

works flawlessy…

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