JS中查找一个字符串中所有子串的位置

var str = "I think of other ages that floated upon the stream of life and love and death";

var positions = [];

function searchSubStr(str,  subStr){

    var pos = str.indexOf(subStr);

    while(pos>-1){

        positions.push(pos);

        pos = str.indexOf(subStr,  pos+1);

    }

}

searchSubStr(str,"o");

原文：https://blog.csdn.net/yeoman92/article/details/54949048