Archive for April, 2012
Don’t use this in JavaScript
April 28, 2012
8 comments
this
JavaScript:
var o = { f1: function() { console.log('hi'); }, f2: function() { this.f1(); } }; o.f2.prototype.f1 = function() { console.log('bye'); } var k = { f1: function() { console.log('pfff'); } } new o.f2(); o.f2.apply(k); o.f2(); var x = o.f2; x();
There. That’s why I never use the this
keyword in JavaScript.
And that’s why I think you should stop using it too.
Can you figure out what’s the output of this code?
Categories: Development, English, JavaScript, Programming
development, javascript, programming, this, web