JavaScript object instance
Use the built-object instances JavaScript.
String (String) objects
- Returns the length of the string
- Add style to a string
- Returns a string specified in the text for the first time to appear - indexOf () method
- Find a specific character string, if found, it returns the character - match () method
- Replacement string of characters - replace ()
- More examples of the string object in our JavaScript String Object Reference.
Date (date) objects
- Use Date () method to return today's date and time
- Use getTime () to calculate from 1970 to today, the number of milliseconds
- Use setFullYear () to set a specific date
- Use toUTCString () to the date (according to UTC) is converted to a string
- Use getDay () to display the week, not just numbers
- Display a clock
- More examples of Date (date) object in our JavaScript Date Object Reference.
Array (array) objects
- Creating an array
- Merge two arrays - concat ()
- Merge three arrays - concat ()
- Elemental composition of a string array - join ()
- Remove the last element of the array - pop ()
- Added to the end of an array of new elements - push ()
- A reversal of the order of elements in the array - reverse ()
- Remove the first element of the array - shift ()
- Choose from an array of elements - slice ()
- Array sort (in ascending alphabetical order) - sort ()
- Numeric sort (in ascending numerical order) - sort ()
- Number Sequencing (in descending numerical order) - sort ()
- Add an element to the second position in the array - splice ()
- Convert a string array to -toString ()
- In the beginning of the array to add new elements - unshift ()
- More examples of Array (array) objects in our Reference JavaScript Array object.
Boolean (Boolean) Object
- Check the logic value
- More examples of Boolean (Boolean) target object in our reference manual JavaScript Boolean object.
Math (arithmetic) Object
- Use round () for rounding numbers
- The use of random () to return a random number between 0-1
- Number of use max () to return the two given the large number of
- Number using min () to return the two given the smaller number of
- Celsius and Fahrenheit conversion
general
- Use for ... in statement through the object element
- More Math object instances in our JavaScript Math object reference manual.