javascript - 如何用指定的文本替换字符串中的字符？

Question

我想写一个函数，当给出一个字符串时，它会自动用指定的值替换字符串。例如 ：-

let name = 'app';
valueReplace(name);

function valueReplace(value){
//Have to change char 'a' 'p' 'p' with the values given below 

let a = '2G8D';
let p = '7K5A';

/*
Code that will help to do this
*/

}

Answer 1

const p = 'The quick brown fox jumps over the lazy dog. If the dog reacted, was it really lazy?';

console.log(p.replace('dog', 'monkey'));
// expected output: "The quick brown fox jumps over the lazy monkey. If the dog reacted, was it really lazy?"


const regex = /Dog/i;
console.log(p.replace(regex, 'ferret'));
// expected output: "The quick brown fox jumps over the lazy ferret. If the dog reacted, was it really lazy?"

参考

Answer 2

你可以为此使用正则表达式

let name = 'app';
console.log(valueReplace(name));

function valueReplace(value){
//Have to change char 'a' 'p' 'p' with the values given below 
  let a = '2G8D';
  let p = '7K5A';
  return value.replace(/a/g, "2G8D").replace(/p/g, "7K5A");


}