To check for case insensitive string contains, use the regular expressions. Add suffix “i” after the string regular expression as shown. var actualstring = "Javascript Regular Exp"; var regexp = "javascript"; /regexp/i.test(actualstring); //returns true ...
2. 内容过滤:在处理文本内容时,检测是否包含敏感词、非法字符或特定关键词,以进行内容审核、自动标记或过滤。 function containsProfanity(text) { const profanities = ["swearword1", "swearword2", "etc."]; return profanities.some(word => text.includes(word)); } const message = "This message contai...
; const searchValue = "world"; if (str.toLowerCase().includes(searchValue.toLowerCase())) { console.log(`${searchValue} is found (case-insensitive).`); } 2. 从指定位置开始查找:虽然 includes() 本身不支持从指定索引开始查找,但可以通过截取子字符串实现类似效果。 const str = "Hello, wo...
b2}; 方法一： public static boolean contains(String test) { for (Choice c : Choice.values...
正则表达式是被用来匹配字符串中的字符组合的模式。在JavaScript中,正则表达式也是对象。这种模式可以被用于RegExp的exec和test方法以及String的match、replace、search和split方法。这一章介绍Javascript的正则表达式。 创建一个正则表达式 通过下面两种方法你可以创建一个正则表达式: ...
Example 2: Matching sections in string conststring ="My name is Albert. YOUR NAME is Soyuj.";// expression matches case-insensitive "name is"+ any alphabets till period (.)constre =/name\sis\s[a-zA-Z]+\./gi; letresult = string.match(re); ...
String charAt() String charCodeAt() String at() String [ ] String slice() String substring() String substr() See Also: String Search Methods String Templates String toUpperCase() String toLowerCase() String concat() String trim() String trimStart() ...
true if the string is found; otherwise, false. 描述 When a string is specified, the browser performs a case-insensitive, forward search. If a string is not specified, the method displays the Find dialog box, allowing the user to enter a search string. ...
i Performs case-insensitive matching Example 2: Regular Expression Modifier const string = 'Hello hello hello'; // performing a replacement const result1 = string.replace(/hello/, 'world'); console.log(result1); // Hello world hello // performing global replacement const result2 = string.rep...
The value of the number usually depends on whether the result is true or false or whether the resultant string contains a number. To understand this better, consider the following examples: alert(true+true)//2 alert(true+false)//1 alert(false+false)//0 Each code sample is a Boolean ...