js正则匹配相关

Question

想用正则实现匹配 ,} 但是不能匹配 ",}" 里面的,}要怎么实现
例如  {"enemy_kill":"{"phase1":"[10142,10124,10080,10140]","phase2":"[10142,10124,10080,10160]",}",}
只能匹配字符串末尾的 ,}

Answer 1

var reg = /do(?!es)(?!s)/g;
var str = 'doa does dos'
str.match(reg)

Answer 2

/\bdo\b/g