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thunkify-wrap
Advanced tools
Turn callbacks, arrays, generators, generator functions, and promises into a thunk
Turn each node function in an object return a thunk. Turn a regular node function into one which returns a thunk, useful for generator-based flow control such as co.
// the same as thunkify
var thunkify = require('thunkify-wrap');
var fs = require('fs');
fs.readFile = thunkify(fs.readFile);
fs.readFile('package.json', 'utf8')(function(err, str){
});
// thunkfiy an object
var user = {
add: function () {},
show: function () {},
list: function () {}
}
module.exports = thunkify(user);
you can pass an event object, give end event name list, wrap event to thunk like this
var e = new EventEmitter();
var end = thunkify(e, 'finish');
yield end();
or
yield.end(['close', 'end']); // will cover `finish` event
when specified events emitted, this generator will go on. see more in the source code.
also you can pass ctx
as contenxt into thunkify, and thunkify(object)
will use object as the context by default.
var thunkify = require('thunkify-wrap');
var Cal = function (a, b) {
this.a = a;
this.b = b;
};
Cal.prototype.plus = function(callback) {
var self = this;
setTimeout(function () {
callback(null, self.a + self.b);
}, 5);
};
Cal.prototype.minus = function (callback) {
var self = this;
setTimeout(function () {
callback(null, self.a - self.b);
}, 5);
};
module.exports = Cal;
exports.create1 = function (a, b) {
return thunkify(new Cal(a, b));
};
// or
exports.create2 = function (a, b) {
var cal = new Cal(a, b);
cal.plus = thunkify(cal.plus, cal);
cal.minus = thunkify(cal.minus, cal);
};
by pass methods
list, support only thunkify a part of methods in an object.
exports.create3 = function (a, b) {
var cal = new Cal(a, b);
thunkify(cal, cal, ['plus']);
// or
thunkify(cal, ['plus']);
};
MIT
FAQs
Turn callbacks, arrays, generators, generator functions, and promises into a thunk
The npm package thunkify-wrap receives a total of 23,014 weekly downloads. As such, thunkify-wrap popularity was classified as popular.
We found that thunkify-wrap demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 2 open source maintainers collaborating on the project.
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