【js】怎么判断 字符串是否包含指定字符
管理员
2023-04-14 11:46:27
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在 JavaScript 中,可以使用 String.prototype.includes() 方法来判断一个字符串是否包含指定的字符。该方法执行区分大小写的检查,如果 searchString 在字符串中,则返回 true ,否则返回false。
例如:
let string = 'The lazy fox jumped over the fence'; if (string.includes('lazy')) { console.log("The string 'lazy' was found in the string"); }if (string.includes('Lazy')) { console.log('The string "Lazy" was found in the string'); } else { console.log('"Lazy" was not found because the case does not match'); }
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