uneval() - JavaScript 编辑

Non-standard

This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.

Obsolete since Gecko 74 (Firefox 74 / Thunderbird 74 / SeaMonkey 2.71)

This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.

The uneval() function creates a string representation of the source code of an Object.

Syntax

uneval(object)

Parameters

object

A JavaScript expression or statement.

Return value

A string representing the source code of object.

Description

uneval() is a top-level function and is not associated with any object.

Examples

Using uneval

var a = 1;
uneval(a); // returns a String containing 1

var b = '1';
uneval(b); // returns a String containing "1"

uneval(function foo() {}); // returns "(function foo(){})"

var a = uneval(function foo() { return 'hi'; });
var foo = eval(a);
foo(); // returns "hi"

Specifications

Not part of any standard.

Browser compatibility

BCD tables only load in the browser

See also

• eval()
• JSON.stringify()
• JSON.parse()
• Object.toSource()