[JS] 尋找字串中所有符合樣式的實例

var searchString = "Now is the time and this is the time and that is the time";
var pattern = /t\w*e/g;
var matchArray;

var str = "";
      
// 使用 RegExp exec 搜尋樣式，假如回傳值不是 null，則處理搜尋結果
while( (matchArray = pattern.exec(searchString)) != null ){
  str += "at " + matchArray.index + " we found " + matchArray[0] + "\n";
}
console.log(str);

以上的輸出結果為：

at 7 we found the
at 11 we found time
at 28 we found the
at 32 we found time
at 49 we found the
at 53 we found time