Created
April 17, 2017 10:00
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Callback Hell Example
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fs.readdir(source, function (err, files) { | |
if (err) { | |
console.log('Error finding files: ' + err) | |
} else { | |
files.forEach(function (filename, fileIndex) { | |
console.log(filename) | |
gm(source + filename).size(function (err, values) { | |
if (err) { | |
console.log('Error identifying file size: ' + err) | |
} else { | |
console.log(filename + ' : ' + values) | |
aspect = (values.width / values.height) | |
widths.forEach(function (width, widthIndex) { | |
height = Math.round(width / aspect) | |
console.log('resizing ' + filename + 'to ' + height + 'x' + height) | |
this.resize(width, height).write(dest + 'w' + width + '_' + filename, function(err) { | |
if (err) console.log('Error writing file: ' + err) | |
}) | |
}.bind(this)) | |
} | |
}) | |
}) | |
} | |
}) |
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