网友您好, 请在下方输入框内输入要搜索的题目:

题目内容 (请给出正确答案)

console.log(foo);varfoo="foo!";console.log(foo);执行上面代码,控制台会输出()。

  • A、undefined undefined
  • B、foo! undefined
  • C、undefined foo!
  • D、foo! fool!

参考答案

更多 “console.log(foo);varfoo="foo!";console.log(foo);执行上面代码,控制台会输出()。A、undefined undefinedB、foo! undefinedC、undefined foo!D、foo! fool!” 相关考题
考题 执行以下代码的结果是?foo={1,3,3,4}type(foo)A.setB.dictC.tupleD.object

考题 执行以下代码的结果是?foo={1,5,2,3,4,2}foo={}len(foo)A.0B.3C.5D.6

考题 GivenanELfunctionfoo,innamespacefunc,thatrequiresalongasaparameterandreturnsaMap,which twoarevalidinvocationsoffunctionfoo?() A.${func(1)}B.${foo:func(4)}C.${func:foo(2)}D.${foo(5):func}E.${func:foo(easy)}F.${func:foo(3).name}

考题 foo对象有att属性,那么获取att属性的值,以下哪些做法是可以的()。A.foo.attB.foo(“att”)C.foo[“att”]D.foo{“att”}

考题 Assume a tag handler extends TagSupport. Which is used within the tag handler to get an attribute “foo” that is in the application scope?()A、 pageContext.getAttribute(“foo”);B、 getPageContext().getAttribute(“foo”);C、 pageContext.getApplicationScope(“foo”);D、 pageContext.getAttribute(“foo”,pageContext.APPLICATION_SCOPE).getAttribute(“foo”);E、 getPageContext().getScope(pageContext.APPLICATION_SCOPE).getAttribute(“foo”);

考题 Which the three are valid declarations of a float?()A、 float foo = -1;B、 float foo = 1.0;C、 float foo = 42el:D、 float foo = 2.02f:E、 float foo = 3.03d:

考题 下列选项中,能有效地描述浮点数的有()。A、Float foo = -1;B、Float foo = 1.0;C、Float foo = 42e1;D、Float foo = 2.02f;E、Float foo = 3.03d;F、Float foo = 0x0123;

考题 class Foo {  private int x;  publicFoo(intx) {this.x=x; }  public void setX( int x) { this.x = x; }  public int getX() { return x; }  }   public class Gamma {  static Foo fooBar( Foo foo) {  foo = new Foo( 100);  return foo;  }  public static void main( String[] args) {  Foo foo = new Foo( 300);  System.out.print( foo.getX() + “-“);  Foo fooFoo = fooBar( foo);  System.out.print( foo.getX() + “-“);  System.out.print( fooFoo.getX() + “-“);  foo = fooBar( fooFoo);  System.out.print( foo.getX() + “-“);  System.out.prmt( fooFoo.getX());  }  }  What is the output of this program?()A、 300-100-100-100-100B、 300-300-100-100-100C、 300-300-300-100-100D、 300-300-300-300-100

考题 Which three are valid declarations of a float? () A、 Float foo = -1;B、 Float foo = 1.0;C、 Float foo = 42e1;D、 Float foo = 2.02f;E、 Float foo = 3.03d;F、 Float foo = 0x0123;

考题 Javascript中,foo对象有att属性,那么以下获取att属性值的表达式哪个是错误的?()A、foo.attB、foo["att"]C、foo{"att"}D、foo["a"+"t"+"t"]

考题 foo对象有att属性,那么获取att属性的值,以下哪些做法是可以的?()A、foo.attB、foo(“att”)C、foo[“att”]D、foo{“att”}E、foo[“a”+“t”+“t”]

考题 下面选项中哪一个是和$("#foo")等价的写法()。A、$(“foo#”)B、$(“foo”)C、$(“.foo”)D、jquery(“#foo”)

考题 temp=’this is a temped variable’;echo foo${temp}上述命令执行的结果为()A、fooB、foo$tempC、foo’this is a temped variable’D、foothis is a temped variable

考题 class One {   public One foo() { return this; }  }  class Two extends One {  public One foo() { return this; }  }  class Three extends Two {   // insert method here  }  Which two methods, inserted individually, correctly complete the Three class?()A、 public void foo() { }B、 public int foo() { return 3; }C、 public Two foo() { return this; }D、 public One foo() { return this; }E、 public Object foo() { return this; }

考题 Given an EL function foo, in namespace func, that requires a long as a parameter and returns a Map, which two are valid invocations of function foo?()A、 ${func(1)}B、 ${foo:func(4)}C、 ${func:foo(2)}D、 ${foo(5):func}E、 ${func:foo(“easy”)}F、 ${func:foo(“3”).name}

考题 public class Foo {  private int val;  public foo(int v) (val = v;)  }  public static void main (String [] args)  {  Foo a = new Foo (10);  Foo b = new Foo (10);  Foo c = a;  int d = 10;  double e = 10.0;  }  Which three logical expression evaluate to true?()A、 (a ==c)B、 (d ==e)C、 (b ==d)D、 (a ==b)E、 (b ==c)F、 (d ==10.0)

考题 String foo = “blue”;  Boolean[]bar = new Boolean [1];  if (bar[0])  {  foo = “green”;  }   What is the result? () A、 Foo has the value of “”B、 Foo has the value of null.C、 Foo has the value of “blue”D、 Foo has the value of “green”E、 An exception is thrown.F、 The code will not compile.

考题 多选题下列选项中,能有效地描述浮点数的有()。AFloat foo = -1;BFloat foo = 1.0;CFloat foo = 42e1;DFloat foo = 2.02f;EFloat foo = 3.03d;FFloat foo = 0x0123;

考题 单选题Assume a tag handler extends TagSupport. Which is used within the tag handler to get an attribute “foo” that is in the application scope?()A  pageContext.getAttribute(“foo”);B  getPageContext().getAttribute(“foo”);C  pageContext.getApplicationScope(“foo”);D  pageContext.getAttribute(“foo”,pageContext.APPLICATION_SCOPE).getAttribute(“foo”);E  getPageContext().getScope(pageContext.APPLICATION_SCOPE).getAttribute(“foo”);

考题 单选题String foo = “blue”;    Booleanbar = new Boolean [1];    if (bar[0]) {    foo = “green”;    }   What is the result?()A  Foo has the value of “”B  Foo has the value of null.C  Foo has the value of “blue”D  Foo has the value of “green”E  An exception is thrown.F  The code will not compile.

考题 多选题Which three are valid declarations of a float? ()AFloat foo = -1;BFloat foo = 1.0;CFloat foo = 42e1;DFloat foo = 2.02f;EFloat foo = 3.03d;FFloat foo = 0x0123;

考题 单选题下面选项中哪一个是和$("#foo")等价的写法:()A $(“foo#”)B $(“foo”)C $(“.foo”)D jquery(“#foo”)

考题 多选题Which the three are valid declarations of a float?()Afloat foo = -1;Bfloat foo = 1.0;Cfloat foo = 42el:Dfloat foo = 2.02f:Efloat foo = 3.03d:

考题 多选题class One {   public One foo() { return this; }  }  class Two extends One {  public One foo() { return this; }  }  class Three extends Two {   // insert method here  }  Which two methods, inserted individually, correctly complete the Three class?()Apublic void foo() { }Bpublic int foo() { return 3; }Cpublic Two foo() { return this; }Dpublic One foo() { return this; }Epublic Object foo() { return this; }

考题 单选题console.log(foo);varfoo="foo!";console.log(foo);执行上面代码,控制台会输出()。A undefined undefinedB foo! undefinedC undefined foo!D foo! fool!

考题 多选题Given an EL function foo, in namespace func, that requires a long as a parameter and returns a Map,which two are valid invocations of function foo?()A${func(1)}B${foo:func(4)}C${func:foo(2)}D${foo(5):func}E${func:foo(easy)}F${func:foo(3).name}

考题 ( 难度:中等)foo对象有att属性,那么获取att属性的值,以下哪些做法是可以的A.foo.attB.foo(“att”)C.foo[“att”]D.foo{“att”}E.foo[“a”+”t”+”t”]