Question

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How to convert string as object's field name in javascript

rated 0 times [ 5] [ 6] / answers: 1 / hits: 56667 / 14 Years ago, sun, january 30, 2011, 12:00:00

I have a js object like:

obj = {

  name: 'js',

  age: 20

};

now i want to access name field of obj, but i can only get string 'name', so how to convert 'name' to obj's field name, then to get result like obj.name.

Thank you in advance.

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joep

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3 Years ago

answered 14 Years ago aileent · Accepted Answer

You can access the properties of javascript object using the index i.e.

var obj = {

  name: 'js',

  age: 20

};



var isSame = (obj[name] == obj.name)

alert(isSame);



var nameIndex = name; // Now you can use nameIndex as an indexor of obj to get the value of property name.

isSame = (obj[nameIndex] == obj.name)

Check example@ : http://www.jsfiddle.net/W8EAr/