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pierre-piot & darek-glowinski #23

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186 changes: 186 additions & 0 deletions starter-code/lib/excersise.js
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Original file line number Diff line number Diff line change
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var opinions = [ "This is the best job ever",
"Satisfied",
"At least I get paid",
"I'm looking for another job",
"I don't want to answer"];



function select10Opinions(){

return _.times(10,function(){
return opinions[Math.floor(Math.random() * 5)];
})

}
console.log(select10Opinions());


var employeeSatisfaction = [];
function call5times(){
return _.times(5,select10Opinions);
}

employeeSatisfaction = call5times();


console.log(employeeSatisfaction);

// Exercise 2

function nameBirthday(array) {
return _.chunk(array, 2);
}

var orderedBday = nameBirthday(birthdays)
console.log(orderedBday);


var moreBirthdays = ["Lily Evans", "30 January", "James Potter", "27 March",
"Dudley Dursley", "30 June", "Tom Riddle", "31 December"];

function concatBday (a , b){
return _.concat(a, b);
}


var nameBirthday2 = nameBirthday(moreBirthdays)

var finalBday = concatBday(orderedBday, nameBirthday2);
console.log(finalBday);





// Exercicse 3


var goodPsswd = "1234567890";
var badPsswd = "1123456";

var noRepeatChar = function (password) {
var UniquePassword = createUniq(password);
if (password.length == UniquePassword.length){
return "Good Password";
} else {
return "Bad Password";
}
};

function createUniq (array){
return _.uniq(array);
}

console.log(noRepeatChar(goodPsswd));
console.log(noRepeatChar(badPsswd));



var goodPsswd = "1234567890";
var badPsswd = "1a234567890";
var onlyNumbers = function (password) {
var testType = true;
for (var i = 0; i < password.length; i++) {
if (isNaN(parseInt(password[i]))){
testType = false;
}
}
return testType;
}

console.log(onlyNumbers(goodPsswd));
console.log(onlyNumbers(badPsswd));





var goodPsswd = "1234567890";
var badPsswd = "12345678901234567890";

var trimPassword = function (password) {
return _.join(_.slice(password, 0, 10), '');
}


trimPassword(badPsswd);

// Exercise 4

var novemberArtists = function (arr) {

var novemberSongs = _.filter(arr, function(elem){

if (_.has(elem, 'month') && elem.month === 11) {
return true;
} else {
return false;
}
});


return countArtist(novemberSongs);
}

function countArtist (arr) {
var artistCounts = _.countBy(arr, 'artist');

var maxSongs = 0;
var maxArtist = '';

for (var key in artistCounts) {
if(artistCounts[key] > maxSongs) {
maxSongs = artistCounts[key];
maxArtist = key;
}

}

return maxArtist;

}


console.log(novemberArtists(abbeyRoadRecords));
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You could've tried to use different Lodash methods for that part, something like:

var novemberArtists = function () {
return .uniq(.map(_.filter(abbeyRoadRecords, ["month", 11]), "artist"));
};
console.log(novemberArtists());



var bestArtist = function (arr) {
return countArtist(arr);
};

console.log(bestArtist(abbeyRoadRecords));


var lastBeatlesSong = function (arr) {

var beatlesSongs = _.filter(arr, function(elem) {
return _.has(elem, 'artist') && elem.artist == "The Beatles";
});

return _.maxBy(beatlesSongs, 'year');
};


console.log(lastBeatlesSong(abbeyRoadRecords));


var sixtiesSong = function (arr) {
var sixtiesSongs = _.filter(arr, function(elem) {
return _.has(elem, 'year') && elem.year < 1970 && elem.year > 1959;
});

var maxYear = _.maxBy(sixtiesSongs, 'year');

var lastYearSongs = _.filter(arr, function(elem) {
return _.has(elem, 'year') && elem.year===maxYear.year;
});

var maxMonth = _.maxBy(lastYearSongs, 'month');
return maxMonth;
};

console.log(sixtiesSong(abbeyRoadRecords));

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Good Job

1 change: 1 addition & 0 deletions starter-code/lodash.html
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.16.4/lodash.js"></script>
<script src="./lib/abbeyRoad.js"></script>
<script src="./lib/harryPotter.js"></script>
<script src="./lib/excersise.js"></script>
</head>

<body>
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