StringUtils.isBlank() vs String.isEmpty() - xszym @xszym 这是一个关于Java的问题,属于不同的类(当然内容相同)。 - Maarten Bodewes2个回答 57 item.isEmpty()仅检查字符串的长度。 item.isBlank()检查长度和所有字符是否为空格。 这意味着 " ".isEmpty()应返回false " ".isBlank()应返回true 来自...
String): Flow<Resource<List<CompanyListing>>> {returnflow { emit(Resource.Loading(true))vallocalListings = dao.searchCompanyListing(query) emit(Resource.Success(data= localListings.map { it.toCompanyListing() } ))valisDbEmpty = localListings.isEmpty() && query.isBlank()valshouldJustLoadFrom...
Here is the Kotlin code: fun String?.isNullEmptyOrBlank(): Boolean { return this == null || this.isEmpty() || this.isBlank() } fun main() { val text: String? = "Hello" val emptyText: String? = "" val blankText: String? = " " println(text.isNullEmptyOrBlank()) // false...
vardata:String?=nulllogD(TAG,"null 0 [${data.isNullOrBlank()}]")// output: null 0 [true]logD(TAG,"null 1 [${data.isNullOrEmpty()}]")// output: null 1 [true]logD(TAG,"null 2 [${data?.isBlank()}]")// output: null 2 [null]logD(TAG,"null 3 [${data?.isEmpty()}]"...
Here is the Kotlin code: fun String?.isNullEmptyOrBlank(): Boolean { return this == null || this.isEmpty() || this.isBlank() } fun main() { val text: String? = "Hello" val emptyText: String? = "" val blankText: String? = " " println(text.isNullEmptyOrBlank()) // false...