Javascript 交错数组中的平均数
我制作了一个锯齿状数组,如下所示: 我想知道如何计算每行的平均数。有什么建议吗 以下是完整的代码:Javascript 交错数组中的平均数,javascript,arrays,loops,average,jagged-arrays,Javascript,Arrays,Loops,Average,Jagged Arrays,我制作了一个锯齿状数组,如下所示: 我想知道如何计算每行的平均数。有什么建议吗 以下是完整的代码: var tempen = [ [" ","00-08","08-16","16-24","Medel"], ["Malmö","12","16","9"," "], ["Mariestad","13","15","10"," "], ["Stockholm","13","15","13"," "], ["Göteborg","13","14","12
var tempen = [
[" ","00-08","08-16","16-24","Medel"],
["Malmö","12","16","9"," "],
["Mariestad","13","15","10"," "],
["Stockholm","13","15","13"," "],
["Göteborg","13","14","12"," "]
];
function printit()
{
var varMyinnerHTML = "<table border='1'>";
for (i=0;i<tempen.length;i++)
{
varMyinnerHTML +="<tr>";
for (j=0;j<tempen[i].length;j++)
{
varMyinnerHTML +="<td>"+ tempen[i][j] +"</td>";
}
varMyinnerHTML +="</tr>";
}
varMyinnerHTML +="</table>";
document.getElementById("kontainer").innerHTML=varMyinnerHTML;
}
</script>
</head>
<body>
<h1>Uppgift 1</h1>
<form name="f1">
<input type="button" value="print" onclick="printit()"/>
</form>
<div id="kontainer"/>
</body>
</html>
var tempen=[
[,“00-08”,“08-16”,“16-24”,“Medel”],
[“马尔默”、“12”、“16”、“9”和“,”,
[“Mariestad”、“13”、“15”、“10”、“18”],
[“斯德哥尔摩”、“13”、“15”、“13”、“13”],
[“哥德堡”、“13”、“14”、“12”、“”]
];
函数printit()
{
var varMyinnerHTML=“”;
对于(i=0;i
const sum=(nos)=>nos.reduce((p,c)=>p+(+c),0);
常数平均值=(个数)=>总和(个数)/个数长度;
常数尾=([,…尾]])=>尾;
常数平均值=(arr)=>arr.map((i)=>avg(tail(i));
var myArray=[“帮助”,“12”,“16”,“9”,“13”,“15”,“10”,“13”,“15”,“请”,“13”,“15”,“13”,“13”,“13”,“12”,“先生”,“13”,“14”,“12”,“13];
console.log(averages(myArray));
平均值是多少[“How”,“can”,“I”,“help”]
?var count=0;myArray.forEach(function(array){count+=array.length})var avg=count/myArray.length