计算元音、辅音的出现次数 - JavaScript
javascriptweb developmentfront end technologyobject oriented programming
我们需要编写一个 JavaScript 函数，该函数接受一个包含英文字母的字符串，例如 −
const str = 'This is a sample string, will be used to collect some data';
该函数应返回一个包含字符串中元音和辅音计数的对象，即输出应为 −
{ vowels: 17, consonants: 29 }
示例
以下是代码 −
const str = 'This is a sample string, will be used to collect some data';
const countAlpha = str => {
return str.split('').reduce((acc, val) => {
const legend = 'aeiou';
let { vowels, consonants } = acc;
if(val.toLowerCase() === val.toUpperCase()){
return acc;
};
if(legend.includes(val.toLowerCase())){
vowels++;
}else{
consonants++;
};
return { vowels, consonants };
}, {
vowels: 0,
consonants: 0
});
};
console.log(countAlpha(str));
输出
这将在控制台中产生以下输出 −
{ vowels: 17, consonants: 29 }
