包含具有“ing”字符串的过滤器数组？

Question

在Javascript中，有没有办法从数组中选择包含某些内容的单词。例如，["swimming", "basketball", "chess", "rowing"]，我想只选择包含“-ing”的项目并将字符串应用于它们。

  

“我去”+“游泳”，等等。

反过来，有没有办法选择不包含该参数的项目。没有“-ing”的单词

  

“我玩”+“篮球”，等等

Answer 1

您可以使用：

• Array.prototype.map()
• Array.prototype.includes()
• Arrow functions

let arr = ["swimming", "basketball", "chess", "rowing"];
let result = arr.map(s => (s.includes("ing")? "I go ": "I play ") + s);
console.log(result);

或者，您可以使用Array.prototype.filter()过滤此数组，并在每个阵列上执行您想要的任何操作。

let arr = ["swimming", "basketball", "chess", "rowing"];

let strWithIng = arr.filter(s => s.includes("ing"));
let strWithoutIng = arr.filter(s => !s.includes("ing"));

console.log(strWithIng);
console.log(strWithoutIng);

Answer 2

一种方法 -

var arr = ["swimming", "basketball", "chess", "rowing"];
arr.map(i=>i.indexOf("ing") != -1? console.log("I go "+ i):console.log("I play "+ i));

var res = arr.map(i=>(i.indexOf("ing") != -1?"I go " :"I play ")+ i); //if you want to put in array
console.log(res);

Read here about Array.prototype.map()