字符串转换数组并从字符串中删除答案

【问题标题】：String convert array and remove from string字符串转换数组并从字符串中删除
【发布时间】：2013-12-30 13:54:21
【问题描述】：

我有以下字符串。

18,21,24,27,30,33,36,39,42,45,48,51,54,57,60,63,66,69,72,75,78,81,84,87,90,93,96,99,102,105,108,111,114,117,120,123,126,129,132,135,138,141,144,147

我想获取每 5 个数字并从字符串中删除意味着如果从 18 到 30 开始，那么 18 到 30 将从这个字符串中删除，现在字符串就像

33,36,39,42,45,48,51,54,57,60,63,66,69,72,75,78,81,84,87,90,93,96,99,102,105,108,111,114,117,120,123,126,129,132,135,138,141,144,147

var allval = jQuery('.implodearrayhide').val();
       var str_split = allval.split(",");

我正在尝试这段代码，但用户不明白我如何在 5 后循环完成时删除 5 号

【问题讨论】：

对不起，我不确定你所说的循环是什么意思？你在哪里循环？如果你想把它分成一个数组数组，所有 5 个或更少的元素，那么你可以这样做 `var groups = []; while (nums.length > 0) { groups.push(nums.splice(0,5)); }

标签： javascript jquery arrays string

【解决方案1】：

你可以像这样使用Array.filter：

var split = allval.split(",").filter(function(i) {
    return i % 5 === 0;
});

【讨论】：

【解决方案2】：

我猜你在找slice：

> str = "18,21,24,27,30,33,36,39,42,45,48,51,54,57,60,63,66,69,72,75,78,81,84,87,90,93,96,99,102,105,108,111,114,117,120,123,126,129,132,135,138,141,144,147"
> newstr = str.split(",").slice(5).join()
"33,36,39,42,45,48,51,54,57,60,63,66,69,72,75,78,81,84,87,90,93,96,99,102,105,108,111,114,117,120,123,126,129,132,135,138,141,144,147"

【讨论】：

【解决方案3】：

使用array.slice(i, i+4) 就像在http://jsfiddle.net/k2kST/ 中一样

我猜你想删除数组的每 5 个元素...

【讨论】：

【解决方案4】：

JS代码

var str = "18,21,24,27,30,33,36,39,42,45,48,51,54,57,60,63,66,69,72,75,78,81,84,87,90,93,96,99,102,105,108,111,114,117,120,123,126,129,132,135,138,141,144,147";
while (str.length > 0) {
    str = str.replace(str.split(",", 5).join(), "").replace(/^,/, "");
    console.log(str);
}

O/P

33,36,39,42,45,48,51,54,57,60,63,66,69,72,75,78,81,84,87,90,93,96,99,102,105,108,111,114,117,120,123,126,129,132,135,138,141,144,147
48,51,54,57,60,63,66,69,72,75,78,81,84,87,90,93,96,99,102,105,108,111,114,117,120,123,126,129,132,135,138,141,144,147
63,66,69,72,75,78,81,84,87,90,93,96,99,102,105,108,111,114,117,120,123,126,129,132,135,138,141,144,147
78,81,84,87,90,93,96,99,102,105,108,111,114,117,120,123,126,129,132,135,138,141,144,147
93,96,99,102,105,108,111,114,117,120,123,126,129,132,135,138,141,144,147
108,111,114,117,120,123,126,129,132,135,138,141,144,147
123,126,129,132,135,138,141,144,147
138,141,144,147

JSfiddle

【讨论】：