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A nifty javascript sandbox for node.js.
console.log
and print
utility methodsBe sure to check out example/example.js
var s = new Sandbox();
s.run('1 + 1 + " apples"', function(output) {
// output.result == "2 apples"
});
Sandbox
#run
(code
, hollaback
)code
{String
} — string of Javascript to be executed.hollaback
{Function
} — called after execution with a single argument, output
.
output
is an object with two properties: result
and console
. The result
property is an inspected string of the return value of the code. The console
property is an array of all console output.For example, given the following code:
function add(a, b){
console.log(a);
console.log(b);
return a + b;
}
add(20, 22);
The resulting output object is:
{
result: "42",
console: ["20", "22"]
}
Sandbox
#postMessage
(message
)message
{String
} - message to send to the sandboxed codeFor example, the following code will send a message from outside of the sandbox in
and then the sandboxed code will respond with its own message. Note that the sandboxed
code handles incoming messages by defining a global onmessage
function and can
send messages to the outside using the postMessage
function.
Sandboxed code:
onmessage = function(message){
if (message === 'hello from outside') {
postMessage('hello from inside');
}
};
Sandbox:
var sandbox = new Sandbox();
sandbox.run(sandboxed_code);
sandbox.on('message', function(message){
// Handle message sent from the inside
// In this example message will be 'hello from inside'
});
sandbox.postMessage('hello from outside');
The process will ONLY be considered finished if onmessage
is NOT a function.
If onmessage
is defined the sandbox will assume that it is waiting for an
incoming message.
Let's get it! The easiest way is through npm:
npm install sandbox
Or if you'd like to play with the code, see the examples, run the tests, what-the-fuck-ever...
git clone git://github.com/gf3/sandbox.git
And run some examples:
node example/example.js
To run the tests simply run the test file with node.
npm test
Sandbox is UNLICENSED.
FAQs
A nifty javascript sandbox for node.js
The npm package sandbox receives a total of 829 weekly downloads. As such, sandbox popularity was classified as not popular.
We found that sandbox demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
Did you know?
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