将双括号内的子字符串替换为javascript中的其他字符串

问题描述

尝试将双括号内的子字符串替换为其他字符串。 例如，假设字符串

a = "In order to unlock this attempt,you must contact your {{teacher}}. When the attempt is unlocked by your {{teacher}},we will notify you!"

我想将a转换为

"In order to unlock this attempt,you must contact your *coach*. When the attempt is unlocked by your *coach*,we will notify you!"

基本上，在JavaScript中将“ {{teach}}”替换为“教练”。有两个或多个要替换它。 （问题）

请在JavaScript中使用正则表达式（RegExp）进行替换。

谢谢

解决方法

对正则表达式使用String.prototype.replace()方法。 replace方法在字符串中搜索指定的值或正则表达式，然后返回替换了指定值的新字符串。使用g修饰符替换所有出现的指定值。替换方法string.replace(searchValue,newValue)

的语法

const a = `In order to unlock this attempt,you must contact your {{teacher}}. When the attempt is unlocked by your {{teacher}},we will notify you!`;
const ret = a.replace(/{{.*?}}/g,'*coach*');
console.log(ret);