TYPEOF 中文是什么意思 - 中文翻译

• typeof

在 英语 中使用 Typeof 的示例及其翻译为 中文

What's the typeof null?
Typeofnull是什么?

Typeof operator, every other use of it should be avoided.
正如typeof操作符一样，任何其它的用法都应该是避免的.

As an operator: typeof x.
作为运算符：typeofx。

The typeof operator makes the distinction between the two values:.
Typeof操作符能对这两个值作出区别：.

The result of typeof null is"object".
Typeofnull的结果是"object"。

The typeof operator can help you to find the type of your variable.
Typeof运算符可以帮助你查询变量的类型。

Buying the right typeof olive oil is crucial.
因此，购买正确类型的橄榄油是重要的。

The more precise way to check for undefined is to use typeof:.
检测undefined的更加准确的方法是用typeof操作：.

Buying the right typeof olive oil is crucial.
因此，购买正确类型的橄榄油至关重要。

Typeof will always return"object" for native non callable objects.
Typeof对原生非可调用对象会始终返回"object".

Be careful when using typeof, instanceof and constructor.
使用typeof、instanceof、constructor时要谨慎小心.

The typeof operator returns the type for a value, with two exceptions:.
Typeof运算符返回值的类型，但有两个例外：.

So, even though null is not an object, typeof null returns'object'.
因为是对象，所以typeofnull返回'object'。

This typeof collapse is not rare, but its magnitude shocked scientists.
这种塌陷并不罕见，但规模之大还是让科学家震惊不已。

For predefined objects, the typeof operator returns results as follows:.
对于预定义的对象，typeof操作符将会返回如下结果：.

The other operators shown all operated on two values, but typeof takes only.
显示的其他运算符都在两个值上运行，但typeof只需要一个。

For a number or string, the typeof operator returns the following results:.
对于一个数值或字符串，typeof操作符将会返回如下结果：.

The other operators shown all operated on two values, but typeof takes only one.
我们看到的其他操作员都运行在两个值上，但type仅需一个。

The typeof operator can be used to find out what type of data a variable or operand contains.
Typeof操作符可以用来找出什么类型的变量或操作数包含的数据。

It is an officially recognized error in typeof, kept for compatibility.
这是官方在typeof方面承认的错误，只是为了兼容性而保留。

One example is the typeof operator, which produces a string value naming the type of the value you give it.
一个例子是typeof运算符，它产生一个字符串值，命名你给它的值的类型。

IsNaN(), as defined in ECMAScript 2015, or you can use typeof to determine if the value is Not-A-Number.
IsNaN()或者可以使用typeof来判断该值是否为一个非数字。

In JavaScript, it is very important to test the type of parameters sent to your functions(using the typeof keyword).
在JavaScript中，测试传递给函数的参数类型十分重要（使用关键词typeof）。

For example, when you use typeof you know it returns a string, so there's no reason to use strict equality.
例如，当你使用typeof你就知道它会返回一个字符串，所以没有使用严格相等的理由。

The switch-type-case statement is a kind of pattern matching on the type and works similar to an instanceof or typeof in Java or JavaScript.
Switch-type-case语句是一种类型模式匹配，类似于Java的instanceof或JavaScript的typeof。

Typeof null returns a value of"object", as the special value null is considered to be an empty object reference.
比如，调用typeofnull会返回”object”，因为特殊值null被认为是一个空的对象引用。

You will notice that we are using a special operator called typeof- this returns the data type of the variable you pass into it.
我们使用了一个名为typeof的特殊的操作符--它会返回所传递给它的变量的数据类型。