Created
May 11, 2016 21:54
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log is a function that logs messages, with a simple indent feature.
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// log is a function that logs messages, and has a simple indent (.enter()) and | |
// unindent (.exit()) feature. | |
// | |
// Usage: | |
// var log = require('./log.js')(); | |
// log.exitAfter = 100; | |
// log.enabled = false; | |
var count = 0, | |
indent = 0; | |
var log = function() { | |
if (log.enabled) { | |
var args = argsArray(arguments); | |
args.unshift(' '.repeat(indent)); | |
console.log.apply(console, args); | |
if (log.exitAfter > 0 && ++log.count >= log.exitAfter) process.exit(); | |
} | |
}; | |
log.enter = function() { | |
if (log.enabled) { | |
var args = argsArray(arguments); | |
args.push('{'); | |
log.apply(null, args); | |
indent++; | |
} | |
}; | |
log.exit = function() { | |
if (log.enabled) { | |
indent--; | |
log('}') | |
} | |
}; | |
log.exitAfter = -1; // set this to cause this to abort after a fixed number of messages | |
log.enabled = true; | |
// Function that turns the `arguments` variable into an Array | |
var argsArray = function(_arguments) { | |
return Array.prototype.slice.call(_arguments); | |
}; | |
module.exports = log; |
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