array = new Array() array = new Array([size]) array = new Array(element0, element1, ..., elementN)
[1,2]concat([3,4],[5,6]);//[1,2,3,4,5,6]
<script type="text/javascript">
var a = [1,2,3];
a.join("");// =>"123"
</script>
<script type="text/javascript"> var fruits = ['apple','banana','pineapple']; fruits.pop();// pineapple console.log(fruits);//["apple","banana"] </script>
<script type="text/javascript"> var a = [1,2,3]; a.shift();//1 console.log(a);//[2,3] </script>
<script type="text/javascript"> var num = ['a','b','c','d','e']; console.log(num.slice(1,4));//["b","c","d"] console.log(num);//["a","b","c","d","e"] </script>
<script type="text/javascript"> var arr = ['js','css','html','php','c']; arr.splice(1, 2,'python','jquery');//["css","html"] console.log(arr);//["js","python","jquery""php","c"] </script>
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