traceurepl
v0.2.0
Published
Traceur repl. Type es6 script then show compiled script and result.
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traceurepl
Traceur repl. Type es6 script then show compiled script and result.
Example
bin/traceurepl
T>let one = 1
var one = 1;
T>let [ one, ...other ] = [ 1, 2, 3, 4 ]
var $__0 = [1, 2, 3, 4],
one = $__0[0],
other = Array.prototype.slice.call($__0, 1);
T>one
one;
1
T>other
other;
[ 2, 3, 4 ]
T>let fun = a => a * a
var fun = (function(a) {
return a * a;
});
T>fun(3)
fun(3);
9
T>import path from 'path'
var $__path__;
var path = ($__path__ = require("path"), $__path__ && $__path__.__esModule && $__path__ || {default: $__path__}).default;
T>path.sep
path.sep;
'/'
T>console.time('promise')
console.time('promise');
T>new Promise( resolve => setTimeout( () => resolve(), 1000)).then( () => console.timeEnd('promise'))
new Promise((function(resolve) {
return setTimeout((function() {
return resolve();
}), 1000);
})).then((function() {
return console.timeEnd('promise');
}));
{ status_: 0,
value_: undefined,
onResolve_: [],
onReject_: [] }
T>promise: 3633ms
T>let asyncFunc = async () => await new Promise( (resolve, reject) => setTimeout( () => resolve(), 1000))
var asyncFunc = (function() {
var $__0,
$__1,
$__2,
$__3,
$__4,
$__5;
return $traceurRuntime.asyncWrap(function($ctx) {
while (true)
switch ($ctx.state) {
case 0:
$__3 = function(resolve, reject) {
return $__1 = function() {
return $__0 = resolve(), $__0;
}, $__2 = setTimeout($__1, 1000), $__2;
};
$__4 = new Promise($__3);
$ctx.state = 5;
break;
case 5:
Promise.resolve($__4).then($ctx.createCallback(2), $ctx.errback);
return;
case 2:
$__5 = $ctx.value;
$ctx.state = 3;
break;
case 3:
$ctx.returnValue = $__5;
$ctx.state = 7;
break;
case 7:
$ctx.state = -2;
break;
default:
return $ctx.end();
}
}, this);
});
T>