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November 5, 2015 17:15
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Checking for Titanium API objects
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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')); |
Strange indeed, but:
> var _isObject = function(obj) { var type = typeof obj; return type === 'function' || type === 'object' && !!obj; };
undefined
> _isObject(Object.create(null).__proto__);
false
> var temp = Object.create(null).__proto__; _isObject(temp);
false
I guess as long as you know you have an object and need to test if it's not a Ti one... the code as I have it now works ok ;)
Looks like that as an expression (or part of one) it returns undefined
, but when passed around (assignment, or function invocation) is null
.
I feel stupid. _proto__
with one _
…
function isJSObject(o) { return !!(o && o.__proto__ !== undefined); };
works flawlessy…
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Oh gosh: