<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
    </head>
    <body>

        <script>
            const _getParams = (url) => {
                // 补全代码
                /*
                    1.使用indexOf找到?的索引位置
                    2.？的索引位置+1后的字符串放入一个数组中，使用split根据&
                    3.在循环遍历数组根据等号拆分左右的key和value
                    4.放入一个对象中，使用.或者[]
                */
                var newArr = []
                var obj = {}
                var newUrl = url.slice(url.indexOf("?") + 1)    
                newArr = newUrl.split("&")
                for(let i=0; i<newArr.length; i++){
                    // 找到=号的索引
                    let left = newArr[i].slice(0, newArr[i].indexOf("="))
                    let right = newArr[i].slice(newArr[i].indexOf("=") + 1)
                    obj[left] = right
                }
                return obj

            }
        </script>
    </body>
</html>