javascript 将 n 个字符从字符串的前面移动到末尾
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Move n characters from front of string to the end
提问by Malyo
It seems like an easy problem, but i can't find solution. I want to take first, let's say 2 letters from string, and move them to the end of this string. So for example, OK12 would become 12OK.
这似乎是一个简单的问题，但我找不到解决方案。我想先取字符串中的 2 个字母，然后将它们移到字符串的末尾。例如，OK12 将变为 12OK。
edit: So far i've tried cutting string off, then adding it to the rest of the string, but i tought there's a one-line solution for that, like predefined function or something.
编辑：到目前为止，我已经尝试切断字符串，然后将其添加到字符串的其余部分，但我认为有一个单行解决方案，例如预定义的函数或其他东西。
回答by gdoron is supporting Monica
回答by Phrogz
Various techniques:
各种技术：
str.slice(2) + str.slice(0,2);
str = str.replace(/^(.{2})(.+)/, '');
for (var a=str.split(""),i=2;i--;) a.push(a.shift());
str = a.join('');
回答by Marius Bal?ytis
text.slice(2) + text.slice(0, 2);
回答by Mert Emir
var a='ok12';
a=a.substr(2,a.length-2)+a.substr(0,2);
