在javascript中删除一行文本 [英] Delete a line of text in javascript

问题描述

在javascript中，如果我有这样的文本块

In javascript, If i have a text block like so

Line 1
Line 2
Line 3

我需要做些什么来删除第一行并将其转换为：

What would i need to do to lets say delete the first line and turn it into:

Line 2
Line 3

推荐答案

最简单的方法是使用拆分和连接函数，这样可以将文本块作为一个行数组来操作，比如所以：

The cleanest way of doing this is to use the split and join functions, which will let you manipulate the text block as an array of lines, like so:

// break the textblock into an array of lines
var lines = textblock.split('\n');
// remove one line, starting at the first position
lines.splice(0,1);
// join the array back into a single string
var newtext = lines.join('\n');

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