如何检查字符串是否包含JavaScript中预定义数组中存在的子字符串？

Question

What is the most efficient way to find out if a JavaScript array contains substring of a given string?

For example in case I have a JavaScript array

var a = ["John","Jerry","Ted"];

I need the condition which returns true when I compare the above array against the string:

"John Elton"

Answer 1

You can use .some() and .includes() methods:

 let arr = ["John","Jerry","Ted"]; let str = "John Elton"; let checker = (arr, str) => arr.some(s => str.includes(s)); console.log(checker(arr, str)); 

Answer 2

For ES6:

var array = ["John","Jerry","Ted"];
var strToMatch = "John Elton"
array.some(el => strToMatch.includes(el))

Answer 3

In case you cannot use ES6:

 let arr = ["John","Jerry","Ted"]; let str = "John Elton"; var match = arr.some(function (name) { return str.indexOf(name) > -1; }); console.log(match);