集合演算に関するメソッド
<script>
(function(){
var a = [1, 2, 5];
var b = [5, 2, 8];
var x;
// x = _.union(a, b);
// x = _.intersection(a, b);
// x = _.difference(a, b);
x = _.uniq([2, 5, 2, 10, 5]);
console.log(x);
})();
</script>
オブジェクト判定のメソッド
<script>
(function(){
var x;
var user = {
name: 'yamamoto',
score: 88,
web: 'http://google.com'
};
// x = _.keys(user);
// x = _.values(user);
// x = _.invert(user);
x = _.has(user, "name");
// isEmpty, isString, isNull, isNumber
console.log(x);
})();
</script>
データ生成のメソッド
(function(){
var x;
// x = _.range(1, 11, 2);
x = _.random(10);
console.log(x);
})();
メソッドをつなげるchainとvalue
<script>
(function(){
var x;
var a = [2, 5, 10, 8];
x = _.chain(a)
.shuffle()
.map(function(num){
return num * 2;
})
.value();
console.log(x);
})();
</script>
