Javascript Language Basics Introduction

Javascript examples for Language Basics:Introduction

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Click the following links for the tutorial for Language Basics and Introduction.

  1. Differentiating Between null and undefined
  2. Checking Whether a Variable or Property Is null or undefined
  3. Transition from undefined to null.
  4. Comparing the undefined and null Values
  5. The Error Object
  6. Handling Errors
  7. Built-in Array Methods
  8. Enumerating the Contents of an Array


  9. Modifying the Contents of an Array
  10. Reading and Modifying the Contents of an Array
  11. Array Literal
  12. Arrays
  13. Converting Strings to Numbers
  14. Converting Numbers to Strings
  15. String Concatenation Operator Precedence
  16. Performing Equality and Identity Tests on Primitives


  17. Compare by value vs by reference
  18. To test to ensure that the values and the types are the same, you need to use the identity operator ===.
  19. Using the Equality and Identity Operators
  20. JavaScript Operators
  21. Determine If an Object Has a Property
  22. delete a property or method from an object using the delete keyword.
  23. Adding a New Method to an Object
  24. Adding and Deleting Properties and Methods
  25. Enumerating an Object's Properties
  26. Read and Modify the Property Values
  27. Using Functions as Methods
  28. Object Literals
  29. Creating Objects
  30. Numbers
  31. Booleans
  32. Strings
  33. Using Variables and Types
  34. Defining Functions That Return Results
  35. Defining Functions with Parameters
  36. Defining and Using Functions
  37. Using Statements
  38. Your first JavaScript code
  39. Run code before the DOM is fully loaded
  40. detect if browser supports CSS3 media query