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JavaScript中數(shù)組的合并以及排序?qū)崿F(xiàn)示例

更新時間：2015年10月24日 16:11:46 投稿：goldensun

這篇文章主要介紹了JavaScript中數(shù)組的合并以及排序?qū)崿F(xiàn)示例,是JavaScript入門學(xué)習(xí)中的基礎(chǔ)知識,需要的朋友可以參考下

合并兩個數(shù)組 - concat()
源代碼:

<!DOCTYPE html>
<html>
<body>

<p id="demo">點(diǎn)擊按鈕合并數(shù)組。</p>

<button onclick="myFunction()">點(diǎn)我</button>

<script>
function myFunction()
{
var hege = ["Cecilie", "Lone"];
var stale = ["Emil", "Tobias", "Linus"];
var children = hege.concat(stale);
var x=document.getElementById("demo");
x.innerHTML=children;
}
</script>

</body>
</html>

測試結(jié)果:

Cecilie,Lone,Emil,Tobias,Linus

合并三個數(shù)組 - concat()
源代碼:

<!DOCTYPE html>
<html>
<body>

<script>

var parents = ["Jani", "Tove"];
var brothers = ["Stale", "Kai Jim", "Borge"];
var children = ["Cecilie", "Lone"];
var family = parents.concat(brothers, children);
document.write(family);

</script>

</body>
</html>

測試結(jié)果:

Jani,Tove,Stale,Kai Jim,Borge,Cecilie,Lone

數(shù)組排序（按字母順序升序）- sort()
源代碼:

<!DOCTYPE html>
<html>
<body>

<p id="demo">Click the button to sort the array.</p>

<button onclick="myFunction()">Try it</button>

<script>
function myFunction()
{
var fruits = ["Banana", "Orange", "Apple", "Mango"];
fruits.sort();
var x=document.getElementById("demo");
x.innerHTML=fruits;
}
</script>

</body>
</html>

測試結(jié)果:

Apple,Banana,Mango,Orange

數(shù)字排序（按數(shù)字順序升序）- sort()
源代碼:

<!DOCTYPE html>
<html>
<body>

<p id="demo">Click the button to sort the array.</p>

<button onclick="myFunction()">Try it</button>

<script>
function myFunction()
{
var points = [40,100,1,5,25,10];
points.sort(function(a,b){return a-b});
var x=document.getElementById("demo");
x.innerHTML=points;
}
</script>

</body>
</html>

測試結(jié)果:

1,5,10,25,40,100

數(shù)字排序（按數(shù)字順序降序）- sort()
源代碼:

<!DOCTYPE html>
<html>
<body>

<p id="demo">Click the button to sort the array.</p>

<button onclick="myFunction()">Try it</button>

<script>
function myFunction()
{
var points = [40,100,1,5,25,10];
points.sort(function(a,b){return b-a});
var x=document.getElementById("demo");
x.innerHTML=points;
}
</script>

</body>
</html>

測試結(jié)果:

100,40,25,10,5,1

將一個數(shù)組中的元素的順序反轉(zhuǎn)排序 - reverse()
源代碼:

<!DOCTYPE html>
<html>
<body>

<p id="demo">Click the button to reverse the order of the elements in the array.</p>

<button onclick="myFunction()">Try it</button>

<script>
var fruits = ["Banana", "Orange", "Apple", "Mango"];

function myFunction()
{
fruits.reverse();
var x=document.getElementById("demo");
x.innerHTML=fruits;
}
</script>

</body>
</html>

測試結(jié)果: