1. General functions
JavaScript general functions include the following 9 functions:
(1) Alert function: Displays a warning dialog box, including an OK button.
(2) Confirm function: Displays a confirmation dialog box, including OK, Cancel button.
(3) Escape function: Converts a character to a Unicode code.
(4) Eval function: Evaluates the result of an expression.
(5) isNaN function: The test is (true) No (false) is not a number.
(6) parsefloat function: Converts a string into a floating-point number form.
(7) parseint function: Converts a string into an integer number form (which can be specified as a binary).
(8) Prompt function: Displays an input dialog box prompting for user input. For example:
(9) Unescape function: Decodes characters encoded by the escape function.
2. Array functions
The JavaScript array function consists of the following 4 functions:
(1) Join function: Converts and joins all elements in an array to a string.
A = new Array (0,1,2,3,4);
b = A.join ("-");//delimiter
Returns the b== "0-1-2-3-4"
(2) Length function: Returns the lengths of the array. Cases:
A = new Array (0,1,2,3,4);
L = a.length;
L==5
(3) Reverse function: Reverses the order of the array elements. Cases:
A = new Array (0,1,2,3,4);
L = A.reverse ();
return (L);
(4) Sort function: Reorder the array elements. Cases:
A = new Array ("X", "Y", "D", "Z", "V", "M", "R");
L = A.sort ();
3. Date function
The JavaScript date function consists of the following 20 functions:
(1) getdate function: Returns the day portion of the date, with a value of 1~31.
(2) Getday function: Returns the day of the week with a value of 0~6, where 0 represents Sunday, 1 means Monday, ..., and 6 means Saturday.
(3) gethours function: Returns the "hour" portion of the date, with a value of 0~23.
(4) Getminutes function: Returns the "minute" part of the date with a value of 0~59.
(5) GetMonth function: Returns the month portion of the date, with a value of 0~11. 0 means January, 2 means March, ..., and 11 means December.
(6) Getseconds function: Returns the "second" part of the date with a value of 0~59.
(7) GetTime function: Returns the system time.
(8) getTimezoneOffset function: Returns the difference in this area (local time and Greenwich Mean Time), in minutes.
4. Other functions
(1) Big function: Add the font to a number, the same as the label result.
(2) Blink function: Causes the string to blink, the same as the label result.
(3) Bold function: Make the font bold, the same as the label result.
(4) Charat function: Returns a character specified in the string.
(5) Fixed function: Sets the font to a fixed-width font, the same as the label result.
(6) FontColor function: Sets the font color, the same as the label result.
(7) Fontsi
Javascript Common function "2"