Массив с четными и нечетными числами

// Declare and initialize myNumberArray

var myNumberArray = [];

// Populate it with numbers from 1 to 10

myNumberArray = [1,2,3,4,5,6,7,8,9,10];

// Declare and initialize myNumbers

var myNumbers = {

even: [],

odd: []

};

// Populate it according to parity

for (var i = 0; i < myNumberArray.length; i++) {

if (myNumberArray[i]%2 ===0) {

myNumbers.even.push(myNumberArray[i]);

} else {

myNumbers.odd.push(myNumberArray[i]);

}

}

// Log it to the console.

console.log(myNumbers);

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Number()

JavaScript has a built-in function called Number(). It converts the value in parentheses to a number that can be used in calculations. If it is not a number, it will return NaN (Not a Number).

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Return Object или конструктор объекта

function makeGamePlayer(name,totalScore,gamesPlayed) {

return {

"name": name,

"totalScore": totalScore,

"gamesPlayed": gamesPlayed

};

}

function addGameToPlayer(player,score) {

player.gamesPlayed++;

player.totalScore += score;

}

http://jsfiddle.net/WWFyA/ - посмотреть в чем дело.

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This. Vs Global Variables

// When a function is called in the global

// context, not as part of an object,

// `this` refers to the window - the global object

var x = 5;

function trickyThis() {

var x = 3;

alert(this.x);

}

// If we uncomment the next line, what would the alert say?

trickyThis();

// fill your answer in below:

var answer = 5;

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Дата добавления: 2015-08-17