javascript - 将特定符号添加到 reg ex javascript

Question

标签： javascript

Answer 1

[^0-9₽]表示“不是 0-9 或 ₽”。
要删除所有内容，但保留空格并 ₽ 执行以下操作：
.replace(/[^ ₽]/gi, ''))

let string = "h 3 l l 0 ₽ h 4 l l 0";

console.log(".replace(/₽/gi, '') Will remove ₽:")
console.log(string + " > " + string.replace(/₽/gi, ''));
console.log(".replace(/[^0-9₽]/gi, '') Will remove everything that is not 0-9 or ₽:")
console.log(string + " > " + string.replace(/[^0-9₽]/gi, ''));
console.log(".replace(/[^ ₽]/gi, '') Will remove everything that is not SPACE or ₽:")
console.log(string + " > " + string.replace(/[^ ₽]/gi, ''));