我正在尝试使用RegExp替换同一个字符串中的多个单词，但似乎无法正常工作，我在stackoverflow中尝试了一些答案，但没有结果
var _tpl = "time working $times, not now $times"
var reg = "$times"
var regexp = new RegExp(reg, "g")
var replaceFor = 1
var _newTpl = _tpl.replace(regexp, replaceFor)
console.log(_newTpl)
一些建议？
答案 0 :(得分：2)
你必须逃避正则表达式＆＃39;将特殊字符传递给new RegExp之前的特殊字符。
var reg = "\\$times"
var _tpl = "time working $times, not now $times"
var reg = "\\$times"
var regexp = new RegExp(reg,"g")
var replaceFor = 1
var _newTpl = _tpl.replace(regexp, replaceFor)
console.log(_newTpl)
答案 1 :(得分：2)
I Hope Below code solves your problem perfectly
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>jQuery UI Datepicker - Default functionality</title>
<link rel="stylesheet" href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">
<link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/timepicker/1.3.5/jquery.timepicker.min.css">
<link rel="stylesheet" href="/resources/demos/style.css">
<script src="https://code.jquery.com/jquery-1.12.4.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/timepicker/1.3.5/jquery.timepicker.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/timepicker/1.3.5/jquery.timepicker.min.js"></script>
<script>
$( function() {
$( "#durationExample" ).timepicker({interval: 60, minTime: '2',maxTime: '6:00pm','showDuration': true});
} );
</script>
</head>
<body>
<div class="col-md-3">
<div class="form-group">
<label for="appt-time">Choose an appointment time: </label>
<input id="durationExample" type="text" class="time" />
</div>
</div>
</body>
</html>
是正则表达式中的特殊字符：您必须将其转义。
$
请注意，您需要两个var _tpl = "time working $times, not now $times"
var reg = "\\$times"
var regexp = new RegExp(reg, "g")
var replaceFor = 1
var _newTpl = _tpl.replace(regexp, replaceFor)
console.log(_newTpl)才能在结果字符串中放置单个文字\。如果使用正则表达式语法而不是字符串语法直接创建正则表达式，则只使用一个\：
\