JavaScript实现字符串的contains函数/ * * string:原始字符串 * substr:⼦字符串 * isIgnoreCase:忽略⼤⼩写 * / function contains(string, substr, isIgnoreCase){ if (isIgnoreCase){ string = string.toLowerCase();substr = substr.toLowerCase();} var startChar = substr.substring(0, 1);var ...
function contains(string, substr, isIgnoreCase) { if (isIgnoreCase) { string = string.toLowerCase(); substr = substr.toLowerCase(); } var startChar = substr.substring(0, 1); var strLen = substr.length; for (var j = 0; j<string.length - strLen + 1; j++) { if (string.charAt(...
如果你需要一个更加通用的方式来实现contains方法,可以创建一个自定义函数: function contains(str, searchString) { return str.indexOf(searchString) !== -1; } const str = "Hello, world!"; const searchString = "world"; console.log(contains(str, searchString)); // 输出: true 在JavaScript中实...
search || p.contains(search)) .collect(Collectors.toList()); } } jjs> dir(new java.util.HashMap()) [void clear(), Object clone(), Object compute(Object arg0, BiFunction arg1), Object computeIfAbsent(Object arg0, Function arg1), Object computeIfPresent(Object arg0, BiFunction arg1), ...
**/return this.replace(/\-(\w)/g, function( $0, $1 ) { return $1.toUpperCase(); });},contains: function( what ) {/** * Returns boolean indicating whether * or not a substring exists within the string **/what = typeof what === 'string' ? what : what.toString();return...
console.log(containsProfanity(message)); // true 3. 路径处理:在URL、文件路径或目录结构中,检查是否包含特定路径片段、文件扩展名等。 function isImageFile(path) { return path.endsWith(".jpg") || path.endsWith(".png") || path.includes(".jpeg"); ...
string – 如果变量是 String 类型的 object – 如果变量是一种引用类型或 Null 类型的 代码语言:javascript 代码运行次数:0 运行 AI代码解释 functionfoo(){}console.log(typeof8);// numberconsole.log(typeoffoo);// functionconsole.log(typeof("nfit"));// stringconsole.log(typeofjQuery);// undefin...
functioncontainsSubstring(str, substring){returnstr.includes(substring);} 21、生成指定长度的随机字母数字字符串: functiongenerateRandomAlphanumeric(length){letresult ='';constcharacters ='ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';for(leti...
javascript 中contains方法的定义 /** * 对大小写敏感的Contains方法 * @param substring * @returns */ String.prototype.contains = function(substring) { return this.indexOf(substring) != -1 ? true:false; };
使用javascript实现C#的String.contains() 1functionisContains(str, substr) {2returnstr.indexOf(substr) >= 0;3} str为源字符串; substr为查找的字符; 返回true代表包含,false代表不包含。