javascript - jQuery字符串替换，只替换数组的开头

Question

我在这里有这段代码：

<script type="text/javascript">
    var catURL = window.location.pathname;
    var catTitle = catURL.split("/");
    catTitleNew = catTitle[4].replace("-", " ");
    alert(catTitleNew);
    //this will alert will convert this-is-my-title to this is-my-title
</script>

而且我认为我的替换代码不起作用，它只是替换第一个"-"我如何让它替换所有的"-"？

Answer 1

catTitleNew = catTitle[4].replace(/-/g, " ");

小提琴