题解 | #计算某字符出现次数#
计算某字符出现次数
https://www.nowcoder.com/practice/a35ce98431874e3a820dbe4b2d0508b1
const readline = require('readline');
const rl = readline.createInterface({
input: process.stdin,
output: process.stdout
});
var arr = [];
rl.on('line', function (line) {
arr.push(line.toLowerCase())
if (arr.length === 2) {
console.log(arr[0].split(arr[1]).length - 1)
}
});