题解 | #计算某字符出现次数#

const rl = require("readline").createInterface({ input: process.stdin });
var iter = rl[Symbol.asyncIterator]();
const readline = async () => (await iter.next()).value;

void async function () {
    // Write your code here
    let list= []
    while(line = await readline()){
        list.push(line)
    }
     const str =list[0].toLowerCase();
    const value =list[1].toLowerCase();
    let count = 0;
    count = str.split(value).length -1
    console.log(count);
}()