replaceAll()方法区分大小写。要执行不区分大小写的替换,您需要使用带有i开关的正则表达式(不区分大小写的搜索)。 示例2:不区分大小写的替换 consttext ="javaSCRIPT JavaScript";// all occurrences of javascript is replacedletpattern =/javascript/gi;// case-insensitive and global searchletnew_text = text.r...
我想replaceAll()在不区分大小写的搜索中使用变量(而不是字符串)执行 JavaScript,但也保留匹配文本的大小写(在返回中)。例如,console.log('doc.p:', doc.p.toString().substring(0, 26))var query = this.manager.store.get('q').value.toString();console.log('query:', query, '| type:', typeof(...
Example 2: Case-Insensitive Replacement constoriginalString='Hello World! HELLO JavaScript!';constsearchString=/hello/gi;constreplaceString='Hi';constreplacedString=originalString.replaceAll(searchString,replaceString);console.log(replacedString); Output: ...
A global, case-insensitive replacement: lettext ="Mr Blue has a blue house and a blue car"; letresult = text.replace(/blue/gi,"red"); Try it Yourself » A function to return the replacement text: lettext ="Mr Blue has a blue house and a blue car"; ...
)",Pattern.CASE_INSENSITIVE);publicstaticStringsanitize(Stringinput){// 使用replaceAll方法清理输入returnSCRIPT_PATTERN.matcher(input).replaceAll("");}publicstaticvoidmain(String[]args){StringuserInput="alert('XSS'); 这是一个测试文本.";StringsanitizedInput=sanitize(userInput);System.out.println("...
consttext="javaSCRIPT JavaScript"// the first occurrence of javascript is replacedlet pattern=/javascript/i;// case-insensitive searchlet new_text=text.replace(pattern,"JS");console.log(new_text)// JS JavaScript// all occurrences of javascript is replacedpattern=/javascript/gi;// case-insensitive...
String toUpperCase() String toLowerCase() String concat() String trim() String trimStart() String trimEnd() String padStart() String padEnd() String repeat() String replace() String replaceAll() String split()JavaScript String LengthThe length property returns the length of a string:Example...
Regular expressions have six optional flags that allow for functionality like global and case insensitive searching. These flags can be used separately or together in any order, and are included as part of the regular expression. Regular expression flags FlagDescriptionCorresponding property g Global se...
For a global case-insensitive replacement, you need to pass the i flag in addition to the g flag, as shown below: const str = 'JavaScript is JavaScript!' const updated = str.replace(/javascript/gi, 'Java') console.log(updated) //"Java is Java!" replaceAll() Method The replaceAll() ...
Regular expressions have six optional flags that allow for functionality like global and case insensitive searching. These flags can be used separately or together in any order, and are included as part of the regular expression. Regular expression flags FlagDescriptionCorresponding property g Global se...