Function.prototype.toSource()
Deprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.
The toSource()
method returns a string representing the
source code of the object. This method is usually called internally by JavaScript and
not explicitly in code. You can call toSource()
while debugging to examine
the contents of an object.
Syntax
toSource()
Return value
A string representing the source code of the object.
Examples
Native functions
For the built-in Function
object, toSource()
returns the
following string indicating that the source code is not available:
function Function() {
[native code]
}
Custom functions
For custom functions, toSource()
returns the JavaScript source that
defines the object as a string.
// For example:
function hello() {
console.log("Hello, World!");
}
hello.toSource();
// Results in:
"function hello() {
console.log(\"Hello, World!\");
}"
Specifications
Not part of any standard.
Browser compatibility
BCD tables only load in the browser