In JavaScript, the syntax for the search() method is: string.search(search_expression); Parameters or Arguments search_expression It is either a string value or a RegExp object that will be searched for instring
Thesearch()method returns -1 if no match is found. Thesearch()method is case sensitive. Note ** If the search value is a string, it is converted to a regular expression. See Also: String Search Regular Expression Tutorial Regular Expression Reference ...
JavaScript Stringsearch()Methodvarre=/apples/gi;varstr="Apples are round, and apples are juicy.";if(str.search(re)==-1){document.write("Does not contain Apples");}else{document.write("Contains Apples");} JavaScript Copy 输出 Contains Apples JavaScript Copy...
所有主流浏览器都支持 search 方法。 示例 JavaScript String search() Method var re = /apples/gi; var str = "Apples are round, and apples are juicy."; if ( str.search(re) == -1 ) { document.write("Does not contain Apples" ); } else { document.write("Contains Apples" ); ...
Javascript examples for String:search HOME Javascript String search Description The search() method searches a string for a specified value or a regular expression, and returns the position of the match. This method returns -1 if no match is found. ...
JavaScript String search() 方法 search()方法在字符串中搜索指定的值,并返回匹配的位置。搜索值可以是字符串或正则表达式。如果未找到匹配项,则此方法返回-1。 在RegExp教程和RegExp对象参考中阅读有关正则表达式的更多信息。 实例: 搜索“jc2182”: ...
JavaScript string.search() Method string.search() 方法是 JavaScript 中的内置方法,用于在正则表达式和给定字符串对象之间搜索匹配项。 语法: string.search(A) 参数:此方法接受一个参数 A,它将正则表达式作为对象保存。 返回值:此函数返回正则表达式和给定字符串对象之间的第一个匹配字符串的索引,如果没有找到匹配...
JavaScript String search() Method: Here, we are going to learn about the search() method of String in JavaScript.
letstr ="GeeksforGeeks";letsearchString ="for";letResult = str.search(searchString);console.log(Result); 输出 5 我们有 Javascript 字符串方法的完整列表,要检查这些方法,请查看Javascript 字符串完整参考文章。 注:本文由纯净天空筛选整理自Kanchan_Ray大神的英文原创作品JavaScript String search() Method。
字符串 search() 方法 search() is method 是一個 String 方法,用於檢查給定字符串中是否存在子字符串。它從子字符串所在的字符串返回子字符串的起始索引。如果字符串中不存在子字符串 – 則返回 -1。 用法: String.search(substring); 這裏,substring是要搜索的字符串的一部分。