javascript - 如果 JavaScript 中的特定单词匹配，则替换行

Question

如果行中的特定单词匹配，那么我想阅读整行。我怎样才能做到这一点。

就像如果

var str = "this is test sample msg \n this is second line \n  ";

包含“sample”单词的行将被返回。

如何在 JavaScript 中执行此操作？

Answer 1

var str = "this is test sample msg \n this is second line \n third samples";
str.split("\n").filter(function(str) {
    return ~str.indexOf("sample")
});
//["this is test sample msg ", " third samples"]