如何在javascript中找到所有字符串出现的索引？
问题描述：
使用indexOf函数我们可以找到特定字符串的索引。如何获取string的所有出现的索引。有没有最简单的方法呢？
Using indexOf function we can find the index of particular string. How to get the index of all the occurrences of string.Is there any simplest way to do it?
答
Tty
Tty
string myString= "Check occurrences within this string.";
int count = myString.match(/in/g);// Search for 'in' occurrences in string
使用正则表达式：
Use a regex:
var regex = /,/g;
var instr = "1,2,3,4";
var current;
var matchIndexes = [];
while ((current = regex.exec(instr)) != null)
{
matchIndexes.push(current.index);
}