我们需要编写一个JavaScript函数,该函数接受一个字符串并将该字符串的相邻单词彼此交换,直到该字符串的结尾。
为此的代码将是-
const str = "This is a sample string only";
const replaceWords = str => {
return str.split(" ").reduce((acc, val, ind, arr) => {
if(ind % 2 === 1){
return acc;
}
acc += ((arr[ind+1] || "") + " " + val + " ");
return acc;
}, "");
};
console.log(replaceWords(str));输出结果
控制台中的输出-
is This sample a only string