xingcheng
前端
获得徽章 7
- #每天一个知识点#
标记模板文字
function formatNumbers(strings: TemplateStringsArray, number: number): string {
return strings[0] + number.toFixed(2) + strings[1];
}
console.log(formatNumbers`This is the value: ${0}, it's important.`); // This is the value: 0.00, it's important.
// 或者如果我们想要“翻译”（在此处转换为小写）字符串中的翻译键。
function translateKey(key: string): string {
return key.toLocaleLowerCase();
}
function translate(strings: TemplateStringsArray, ...expressions: string[]): string {
return strings.reduce((accumulator, currentValue, index) => accumulator + currentValue + translateKey(expressions[index] ?? ''), '');
}
console.log(translate`Hello, this is ${'NAME'} to say ${'MESSAGE'}.`)展开评论点赞
![[可怜]](http://lf-web-assets.juejin.cn/obj/juejin-web/xitu_juejin_web/img/jj_emoji_5.ece2a96.png)