Question

我需要在\n新行的字符串中替换电话号码。我的字符串：Jhony Jhons,jhon@gmail.com,380967574366

我尝试过：

var str = 'Jhony Jhons,jhon@gmail.com,380967574366'
var regex = /[0-9]/g;
var rec = str.trim().replace(regex, '\n').split(','); //Jhony Jhons,jhon@gmail.com,

在\n上进行数字替换，但是在使用电子邮件后，字符串中需要使用多余的逗号。

最后，我的字符串应如下所示：

Jhony Jhons,jhon@gmail.com\n

Answer 1

您可以尝试以下方法：

var str = 'Jhony Jhons,jhon@gmail.com,380967574366';
var regex = /,[0-9]+/g;
str.replace(regex, '\n');

上面的代码段可能会输出您想要的内容，即Jhony Jhons,jhon@gmail.com\n

Answer 2

有很多方法可以做到，而且非常简单，因此请尝试以下简单答案：-

var str = 'Jhony Jhons,jhon@gmail.com,380967574366';
var splitted = str.split(",");      //split them by comma
splitted.pop();                     //removes the last element
var rec = splitted.join() + '\n';   //join them

Answer 3

您需要一个正则表达式来选择完整的电话号码以及前面的逗号。您当前的正则表达式选择每个数字，并用“ \ n”替换每个数字，结果结果是很多“ \ n”。另外，正则表达式与逗号不匹配。

使用以下正则表达式：

var str = 'Jhony Jhons,jhon@gmail.com,380967574366'
var regex = /,[0-9]+$/; 
// it replaces all consecutive digits with the condition at least one digit exists (the "[0-9]+" part) 
// placed at the end of the string (the "$" part) 
// and also the digits must be preceded by a comma (the "," part in the beginning); 
// also no need for global flag (/g) because of the $ symbol (the end of the string) which can be matched only once
var rec = str.trim().replace(regex, '\n'); //the result will be this string: Jhony Jhons,jhon@gmail.com\n

Answer 4

var str = "Jhony Jhons,jhon@gmail.com,380967574366";
var result = str.replace(/,\d+/g,'\\n');
console.log(result)

如何用空字符替换数字

4 个答案: