Javascript object literal function

Question

How can I remove quotes from a JavaScript object literal only by "function" part? For example:

Before

{ "a3" : { "text" : "function(a1,a2) {return a1+a2 }" }

After removing

{ "a3" : { "text" : function(a1,a2) {return a1+a2 } }

P.S: PHP json_encode puts quotes for each value. I need an object function without quotes.

Making a couple of assumptions, the correct solution is: Fix your design so that functions start out life as part of your program and are not loaded into it as part of some data. Logic and data should be separated. — Quentin
– Quentin, Commented Mar 22, 2012 at 16:09

Paul · Accepted Answer · 2012-03-22 16:52:46Z

1

Assuming you trust the source of this content, you can use eval()

someVar = eval('(' + a3.text + ')');

edited Mar 22, 2012 at 16:52

Paul

142k28 gold badges285 silver badges272 bronze badges

answered Mar 22, 2012 at 16:11

Chris Sobolewski

13k13 gold badges65 silver badges97 bronze badges

Sign up to request clarification or add additional context in comments.

9 Comments

Deleteman Over a year ago

eval will not work unless he adds a name to his function, and even so, it will not return the function object (I tested it)

Paul Over a year ago

@Deleteman It will work if he does something like var someVar = eval('(' + a3.text + ')');

Paul Over a year ago

@Bergi eval is not evil if you trust the source and the source is secure (no injection of any kind from another source)

Bergi Over a year ago

It's not so about security, but about performance and all those scope issues. If you can avoid using it, do it. [1]

Paul Over a year ago

@Bergi Javascript's eval, unlike PHP's is very fast. I don't know of it's scoping issues, I assume it just executes everything in the scope of the function you call it from. I do agree with you. Avoid using it when you can, but there are some situations where it's appropriate. Such as in Douglas Crockford's json2.js JSON parser which uses eval after a bunch of regex checks to make sure nothing non JSON get's through.

|

Bergi · Accepted Answer · 2012-03-22 16:23:03Z

0

If you have a javascript Object literal, just write / echo

{ "a3" : { "text" : function(a1,a2) {return a1+a2 } }

If you have a JSON string, bear in mind that JSON does not know functions. PHP's json_encode behaviour is only correct.

edited Mar 22, 2012 at 16:23

answered Mar 22, 2012 at 16:10

Bergi

671k162 gold badges1k silver badges1.5k bronze badges

Collectives™ on Stack Overflow

Javascript object literal function

2 Answers 2

9 Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

9 Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related