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var text = 'cat, bat, sat, fat';
var pos = text.search(/.at/);
while (pos != -1) {
alert(pos);
var pos = text.search(/.at/);
}
var text = 'cat, bat, sat, fat';
var pos = text.match(/.at/g);
//while (pos != -1) {
alert(pos);
// var pos = text.search(/.at/);
//}
var text = 'cat, bat, sat, fat';
var pos = text.match(/.at/g);
for(var i = 0; i < pos.length; i++) {
alert(pos[i]);
}
var text='cat, bat, sat, fat';
var re=/.at/g;
var match;
while((match=re.exec(text))!=null){
alert(match);
}