请问：两个for循环代表什么意思和arr.length和str.length各指什么长度和function checkOtherChar(str)

Question

问题1：function checkOtherChar(str) 与function checkOtherChar()这个区别是？为什么在里面加了str?

问题2：麻烦帮我详细解释下两个for循环代表什么意思和arr.length和str.length各指什么长度？谢谢

代码中的疑难代码：

function checkOtherChar(str)

{

    //定义一个特殊符号的数组

    var arr = ["*","&","<",">","$","\\","/"];

    //循环比较：数组中的每一个字符，与用户名每一个字符进行比对

    for(var i=0;i<arr.length;i++)

    {

        for(var j=0;j<str.length;j++)

        {

            if(arr[i]==str.charAt(j))

            {

                return true;

            }

        }

    }

    //如果没找到

    return false;

}

Answer 1

Excuse me: What do the two for loops mean and what length and function do arr.length and str.length refer to each? checkOtherChar(str)-PHP Chinese website Q&A-Excuse me: What do the two for loops mean and arr.length and What length does str.length refer to and function checkOtherChar(str)-PHP Chinese website Q&A

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