forEachBail.js
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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
module.exports = function forEachBail(array, iterator, callback) {
if(array.length === 0) return callback();
var currentPos = array.length;
var currentResult;
var done = [];
for(var i = 0; i < array.length; i++) {
var itCb = createIteratorCallback(i);
iterator(array[i], itCb);
if(currentPos === 0) break;
}
function createIteratorCallback(i) {
return function() {
if(i >= currentPos) return; // ignore
var args = Array.prototype.slice.call(arguments);
done.push(i);
if(args.length > 0) {
currentPos = i + 1;
done = done.filter(function(item) {
return item <= i;
});
currentResult = args;
}
if(done.length === currentPos) {
callback.apply(null, currentResult);
currentPos = 0;
}
};
}
};
module.exports.withIndex = function forEachBailWithIndex(array, iterator, callback) {
if(array.length === 0) return callback();
var currentPos = array.length;
var currentResult;
var done = [];
for(var i = 0; i < array.length; i++) {
var itCb = createIteratorCallback(i);
iterator(array[i], i, itCb);
if(currentPos === 0) break;
}
function createIteratorCallback(i) {
return function() {
if(i >= currentPos) return; // ignore
var args = Array.prototype.slice.call(arguments);
done.push(i);
if(args.length > 0) {
currentPos = i + 1;
done = done.filter(function(item) {
return item <= i;
});
currentResult = args;
}
if(done.length === currentPos) {
callback.apply(null, currentResult);
currentPos = 0;
}
};
}
};