javascript - JQuery字符串包含check [duplicate](JQuery string contains check [duplicate])

Question

This question already has an answer here:(这个问题在这里已有答案：)

How to check whether a string contains a substring in JavaScript?(如何检查字符串是否包含JavaScript中的子字符串？) 3 answers(3个答案)

I need to check whether a string contains another string or not?(我需要检查一个字符串是否包含另一个字符串？)

var str1 = "ABCDEFGHIJKLMNOP"; var str2 = "DEFG"; Which function do I use to find out if str1 contains str2?(我用哪个函数来确定str1是否包含str2？)   ask by diggersworld translate from so

Answer 1

You can use javascript's indexOf function.(你可以使用javascript的indexOf函数。)

var str1 = "ABCDEFGHIJKLMNOP"; var str2 = "DEFG"; if(str1.indexOf(str2) != -1){ console.log(str2 + " found"); }