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Example of a JavaScript recursion to reverse an array string

Source: Internet
Author: User
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Example of a JavaScript recursion to reverse an array string

 

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<! DOCTYPE html>

<Html>

<Head>

<Meta http-equiv = "Content-Type" content = "text/html; charset = UTF-8"/>

<Title> one JavaScript instance per day-recursively reverse an array string </title>

<Script>

Var func = function (x, indx, str ){

Return indx = 0? Str: func (x, -- indx, (str + = "" + x [indx]);

}

Var arr = new Array ("apple", "banna", "orange", "apple2", "apple3 ");

Var arr1 = arr. slice (0)

Var arr3 = func (arr1, arr1.length ,"");

Var arr2 = arr. slice (0). reverse ();

Console. log (arr2 );

Console. log (arr );

Console. log (arr3 );

</Script>

</Head>

<Body>

<Div id = "date">

</Div>

</Body>

</Html>

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