ES6 RegExp toString()用法及代码示例

toString 方法以 regular-expression 文字形式返回正则表达式的字符串表示形式。

用法

RegExpObject.toString();            

返回值

返回正则表达式的字符串表示形式。

示例

var str = "Javascript is an interesting scripting language"; 
var re = new RegExp( "script", "g" ); 
var result = re.toString(str); 
console.log("Test 1 - returned value:" +  result);  
re = new RegExp( "/", "g" ); 

var result = re.toString(str); 
console.log("Test 2 - returned value:" +  result)

输出

Test 1 - returned value:/script/g 
Test 2 - returned value:/\//g