Javascript3

6. var a= b

7. new

8. var a = new String(“text”);

9. var a = new String(“text”); • new • new String

10. String new

11. new

12. this

14. function test(x,y){ this.x = x; this.y = y; } var a = new test(1,2); new test(1,2) test new new this

15. this

17. var a= obj; a obj

18. this

19. this=

24. • • function(){ … } • •

25. var test = function(x,y){ this.x = x; this.y = y; }; function test(x,y){ this.x = x; this.y = y; }

28. var test = function(){ this.a = “abc”; }; test.text = “ ”; test.text2 = “ ”;

30. new

31. new

32. test

33. var test = function(){ this.a = "abc"; }; test.text = " "; var a = new test(); console.log(a.a); console.log(text.text); console.log(a.text);

35. text

36. this text

37. new

41. prototype

42. prototype

43. prototype

45. constructor prototype

46. var test = function(){ this.a = "abc"; }; //test.prototype test.prototype = { constructor:function(){ this.a= "abc" }, __proto__:Object //IE };

48. __proto__ prototype IE __proto__

49. prototype new prototype

54. a.text = "1234" a text

55. 2.

58. var a = { abc:"text" }; {}

59. new

61. prototype new

62. var test = { test : "text" }; var Creator = function(){}; Creator.prototype = test; var a = new Creator(); console.log(a.test);//text

63. CSS cascade

64. new

65. jQuery

66. • new • prototype • prototype • prototype • prototype

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