Comparing: anything to boolean . Default value of boolean is false. The object to which to return the Boolean .Difference between Boolean and boolean? . 如果有必要,一个表达式将自动转换为Boolean 。 When necessary, an expression is autmatically converted to boolean .
当转换为boolean 时,以下值被认为是FALSE:. When converting to boolean , the following values are considered FALSE:. 要明确地将一个值转换成boolean ,用(bool)或者(boolean)来强制转换。 To explicitly convert a value to boolean , use the(bool) or(boolean) casts.包含boolean 操作数的表达式只能包含boolean操作数。 The Boolean logical operators shown here operate only on boolean operands. 每种类型(除了boolean )允许的值的范围是定义实现的。 The range of values allowed for each(except boolean ) is implementation defined. Type(x)确实是Boolean ,所以它会实施ToNumber(x),将true强制转换为1。 The Type(x) is indeed Boolean , so it performs ToNumber(x), which coerces true to 1. 要明确地将一个值转换成boolean ,用(bool)或者(boolean)来强制转换。 To explicitly convert a value to boolean , use either the(bool) or the(boolean) cast.模拟对象与真正的授权类相同,实现了isUserAllowed(task:Task):boolean 方法。 The mock object implements an isUserAllowed(task: Task): boolean method to match that in the real authorization class. 此规则有一个例外:boolean 和byte值很小,足够JDK完全缓存。 There is an exception to this rule: boolean and byte have few enough values to be cached entirely by the JDK. 命名boolean 变量和方法时要使它们的意思没有歧义,例如isPrime()或isEmpty()或contains()。 Name boolean variables and methods so that their meaning is unambiguous, e.g., isPrime or isEmpty() or contains(). 在将数值数据类型转换为Boolean 值时,0会转换为False,而其他所有值都将转换为True。 When Visual Basic converts numeric data type values to Boolean , 0 becomes False and all other values become True. 首先而且最重要的是,JS实际上拥有true和false关键字,而且它们的行为正如你所期望的boolean 值一样。 First and foremost, JS has actual keywords true and false, and they behave exactly as you would expect of boolean values. Lua中有八种基本类型:nil,boolean ,number,string,function,userdata,thread和table。 There are eight basic types in Lua: nil, boolean , number, string, function, userdata, thread, and table. 当讨论JavaScript中的原始数据类型时,大多数人都知道的基本知识,从String,Number到Boolean 。 When discussing primitive data types in JavaScript, most are aware of the basics, starting with String, Number, and Boolean . Lua中有八种基本类型:nil,boolean ,number,string,function,userdata,thread和table。 In Lua there are 8 basic types of values: nil, number, string, boolean , function, table, user data, and thread. Pascal的标量类型是real、integer、character、boolean 和引进Pascal的新类型枚举:. Pascal's scalar types are real, integer, character, boolean and enumerations, a new type constructor introduced with Pascal:. 许多新功能将在设计时提供更大的自由度,其中最主要的是LiveBoolean 和VectorDisplacementMesh。 Many new features will provide increased freedom while designing, foremost of which are Live Boolean and also Vector Displacement Mesh. 我认为隐含强制转换可以真正闪光的一个情况是,将特定类型的复杂boolean 逻辑简化为简单的数字加法。 I think a case where implicit coercion can really shine is in simplifying certain types of complicated boolean logic into simple numeric addition. Boolean remove(Objecto):从此collection中移除指定元素的单个实例,如果存在的话(可选操作)。Boolean remove(Object o): Removes a single instance of the specified element from this collection, if it is present(optional operation). 此示例有Decimal(Int32,Int32,Int32,Boolean ,Byte)构造函数,它从提供的部分生成新的Decimal值。 An example of this is the Decimal(Int32, Int32, Int32, Boolean , Byte) constructor, which builds a new Decimal value from the supplied parts. 许多非常重要的定理需要Hahn-Banach定理,通常使用选择公理证明,尽管严格较弱的Boolean primeidealtheorem就足够了。 Many very important theorems require the Hahn-Banach theorem, usually proved using axiom of choice, although the strictly weaker Boolean prime ideal theorem suffices. 在JavaScript中,共有6种基本数据类型:string,number,boolean ,null,undefined,symbol(ECMAScript2015新增)。 In JavaScript, there are 6 primitive data types: string, number, boolean , null, undefined, symbol(new in ECMAScript 2015). 当需要完成一次LiveBoolean 创建时,只需单击一个按钮,LiveBoolean 过程将转换为几何体。 When it comes time to finalize a Live Boolean creation, simply click a single button and the Live Boolean process will be converted to geometry.
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