javascript - 用数组元素替换字符串

Question

let string = 'My name is [~FIRSTNAME] [~LASTNAME]';
let nameArray = ['Peter', 'Parker'];
let patternToBeReplaced = ['[~FIRSTNAME]', '[~LASTNAME]']

我想将 string 替换为 namearray 的元素，这样字符串就变成了 'My name is Peter Parker'

下面是我解决这个问题的方法-

patternToBeReplaced.forEach(function (match, index) {
        var output = string.replace(match, nameArray[index]);
});

但这并没有像预期的那样工作。

Answer 1

你可以使用 Array#reduce并使用该字符串进行下一次替换。

let string = 'My name is [~FIRSTNAME] [~LASTNAME]';
let nameArray = ['Peter', 'Parker'];
let patternToBeReplaced = ['[~FIRSTNAME]', '[~LASTNAME]']

string = patternToBeReplaced.reduce((s, m, i) => s.replace(m, nameArray[i]), string);

console.log(string);