1.0.1 • Published 2 years ago
call-once-fn v1.0.1
call-once-fn
Calls a callback only once.
var next = once('call-once-fn');
var assert = require('assert');
var results = [];
function addResults() {
results.push(arguments);
}
var callback1 = once(addResults);
assert.ok(!results.length);
callback1('error', 'value1', 'value2');
assert.equal(results.length, 1);
assert.equal(results.length, 1);
callback1('error', 'value1', 'value2');
assert.equal(results.length, 1);