~ number: 6 ~ title: Collections, Iterators, and Meta-iterators
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~ number: 6 ~ title: Collections, Iterators, and Meta-iterators
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/** | |
* Converts YouTube formatted duration to seconds. | |
* | |
* Expects input String of the form "PT#M#S", in which the letters PT indicate | |
* that the value specifies a period of time, and the letters M and S refer to | |
* length in minutes and seconds, respectively. The # characters preceding the | |
* M and S letters are both integers that specify the number of minutes (or | |
* seconds) of the video. For example, a value of PT15M51S indicates that the | |
* video is 15 minutes and 51 seconds long. | |
*/ |
/** | |
* Formats number of seconds to hh:mm:ss format. | |
*/ | |
formatTime: function (seconds) { | |
var minutes = Math.floor(seconds / 60), | |
hours = Math.floor(minutes / 60), | |
h = (hours !== 0) ? hours + ":" : "", | |
m = (minutes % 60 !== 0) ? (minutes % 60) + ":" : ((h === "") ? "" : "00:"), | |
s = (seconds % 60 !== 0) ? (seconds % 60) : "00"; |
/** | |
* | |
* Computes the average number of students per section in the sandbox/demo API. | |
* | |
*/ | |
var request = require('request'); | |
// We know that there's only one district in the dummy data from a call | |
// to the `districts` endpoint, ie |
function isValidUSPhoneNum(number) { | |
// Matches valid US numbers of the form | |
// xxx (whitespace or -) xxx (whitespace or -) xxxx | |
var USPhoneNumRegex = /^(?:\([2-9][0-9]{2}\)(?:[\s]*|[-])|[2-9][0-9]{2}(?:[\s]*|[-]))[0-9]{3}(?:[\s]*|[-])[0-9]{4}$/; | |
// booleanize bitch | |
return !!number.match(USPhoneNumRegex); | |
} |
function isValidUSPhoneNum(number) { | |
var USPhoneNumRegex = /^(?:\([2-9]{3}\)(?:[\s]*|[-])|[2-9]{3}(?:[\s]*|[-]))[0-9]{3}(?:[\s]*|[-])[0-9]{4}$/; | |
// booleanize | |
return !!number.match(USPhoneNumRegex); | |
} |
/** | |
* | |
* Little utility script to get list of all department codes | |
* | |
*/ | |
var request = require('request'); | |
var async = require('async'); | |
var _ = require('lodash'); | |
var fs = require('fs'); |