剑指 Offer 05. 替换空格

题目链接

// 正则匹配
function replaceSpace(s: string): string {
    return s.replace(/\x20/g, '%20');
};

// 字符串操作
function replaceSpace(s: string): string {
    return s.split(' ').join('%20');
};

// 遍历
function replaceSpace(s: string): string {
    const tmp = [...s];
    return tmp.map((el)=>{return el === ' '? '%20': el;}).join('');
};

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