Question

如何创建javascript forloop，将输入作为常规字符串，但以固定间隔插入\n？

例如，如果这是输入：

输入：

x="This is a new line.This is a new line.This is a new line.This is a new line.This is a new line."

假设间隔设置为19

循环将在整个字符串

的19个字符的末尾插入\n

x="This is a new line.**\n**This is a new line.**\n**This is a new line.**\n**This is a new line.**\n**This is a new line."

从而产生输出，如果我们要做alert(x)

This is a new line.
This is a new line.
This is a new line.
This is a new line.
This is a new line.

我已经尝试了几个小提琴，但没有一个可以达到合适的结果。

类似的问题并没有完全回答我的问题：

how to break line after certain length using javascript

javascript code (new line, loops)

Answer 1

var x = x="This is a new line.This is a new line.This is a new line.This is a new line.This is a new line."

var a = [];
var i = 12; // Every 12 characters


// Split the string into an array of 12 character strings
do {
    a.push(x.substring(0, i));
} while((x = x.substring(i, x.length)) != "");

// Join the strings
a = a.join('\n');

alert(a);

Fiddle

Javascript Forloop，在某些长度插入新行

1 个答案: