git ssb

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'use strict';
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var Batch = require('batch');
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var batch = new Batch();
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batch.concurrency(4);
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var ids = [ 4, 7, 12, 25 ];
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ids.forEach(function () {
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  batch.push(function (done) {
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    setTimeout(function () {
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      done();
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    }, 100);
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  });
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});
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var passed = 0;
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batch.on('progress', function () {
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  passed += 1;
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});
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batch.end(function (error) {
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  if (error) {
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    throw error;
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  }
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  if (passed > 3) {
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    console.log('ok');
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  }
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});
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