Javascript Program Download ##TOP##
Reymundo Ramirez
JavaScript (JS) is a lightweight interpreted (or just-in-time compiled) programming language with first-class functions. While it is most well-known as the scripting language for Web pages, many non-browser environments also use it, such as Node.js, Apache CouchDB and Adobe Acrobat. JavaScript is a prototype-based, multi-paradigm, single-threaded, dynamic language, supporting object-oriented, imperative, and declarative (e.g. functional programming) styles.
I have made a JavaScript hello world program in BBEdit, and saved it as app.js. But when I'm trying to run the file in Terminal, I keep getting the error (syntax error near unexpected token `'Hello world'').
Tip: VS Code tries to infer the best import style to use. You can explicitly configure the preferred quote style and path style for imports added to your code with the javascript.preferences.quoteStyle and javascript.preferences.importModuleSpecifier settings.
You can leverage some of TypeScript's advanced type checking and error reporting functionality in regular JavaScript files too. This is a great way to catch common programming mistakes. These type checks also enable some exciting Quick Fixes for JavaScript, including Add missing import and Add missing property.
Some users want to use syntax constructs like the proposed pipeline (>) operator. However, these are currently not supported by VS Code's JavaScript language service and are flagged as errors. For users who still want to use these future features, we provide the javascript.validate.enable setting.
[An editor is available at the bottom of the page to write and execute the scripts. Go to the editor]
1. Write a JavaScript program to display the current day and time in the following format.
Sample Output : Today is : Tuesday.
Current time is : 10 PM : 30 : 38
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5. Write a JavaScript program to rotate the string 'w3resource' in the right direction. This is done by periodically removing one letter from the string end and attaching it to the front.
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8. Write a JavaScript program where the program takes a random integer between 1 and 10, and the user is then prompted to input a guess number. The program displays a message "Good Work" if the input matches the guess number otherwise "Not matched".
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15. Write a JavaScript program to get the difference between a given number and 13, if the number is broader than 13 return double the absolute difference.
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17. Write a JavaScript program to compute the absolute difference between a specified number and 19. Returns triple the absolute difference if the specified number is greater than 19.
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21. Write a JavaScript program to create another string by adding "Py" in front of a given string. If the given string begins with "Py" return the original string.
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23. Write a JavaScript program to create a new string from a given string by changing the position of the first and last characters. The string length must be broader than or equal to 1.
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26. Write a JavaScript program to create a string from a given string. This is done by taking the last 3 characters and adding them at both the front and back. The string length must be 3 or more.
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28. Write a JavaScript program to check whether two given integer values are in the range 50..99 (inclusive). Return true if either of them falls within the range.
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29. Write a JavaScript program to check whether three given integer values are in the range 50..99 (inclusive). Return true if one or more of them are in the specified range.
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30. Write a JavaScript program to check whether a string "Script" appears at the 5th (index 4) position in a given string. If "Script" appears in the string, return the string without "Script" otherwise return the original one.
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37. Write a JavaScript program to produce a new string that has the first 3 characters in lower case from a given string. If the string length is less than 3 convert all the characters to upper case.
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38. Write a JavaScript program to check a student's total marks in various examinations. The student will get A+ grade if the total marks are in the range 89..100 inclusive, if the examination is "Final-exam" the student will receive A+ grade and total marks must be greater than or equal to 90. If the student gets an A+ grade, return true, otherwise return false.
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41. Write a JavaScript program to check a set of three numbers; if the three numbers are the same return 30; otherwise return 20; and if two numbers are the same return 40.
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42. Write a JavaScript program to check whether three given numbers are increasing in strict or in soft mode.
Note: Strict mode -> 10, 15, 31 : Soft mode -> 24, 22, 31 or 22, 22, 31
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58. Write a JavaScript program to create an updated string of 4 copies of the last 3 characters of a given original string. The string length must be 3 and above.
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62. Write a JavaScript program to move the last three characters to the start of a given string. The string length must be greater than or equal to three.
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63. Write a JavaScript program to create a string using the middle three characters of a given string of odd length. The string length must be greater than or equal to three.
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64. Write a JavaScript program to concatenate two strings and return the result. If the length of the strings does not match, then remove the characters from the longer string.
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67. Write a JavaScript program to create a new string from a given string. This program removes the first and last characters of the string if the first or last character is 'P'. Return the original string if the condition is not satisfied.
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68. Write a JavaScript program to create a new string using the first and last n characters from a given string. The string length must be larger than or equal to n.
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71. Write a JavaScript program to check whether 1 appears in the first or last position of a given array of integers. The array length must be larger than or equal to 1.
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74. Write a JavaScript program to find the largest value between the first and last elements and set all the other elements to that value. Display the updated array.
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76. Write a JavaScript program to create an array by taking the first and last elements from a given array of integers. The length must be larger than or equal to 1.
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84. Write a JavaScript program to replace each character in a given string with the next in the English alphabet.
Note: 'a' will be replace by 'b' or 'z' would be replaced by 'a'.
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85. Write a JavaScript program to divide a given array of positive integers into two parts. First element belongs to the first part, second element belongs to the second part, and third element belongs to the first part and so on. Now compute the sum of two parts and store it in an array of size two.
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86. Write a JavaScript program to find the types of a given angle.
Types of angles:
- Acute angle: An angle between 0 and 90 degrees.
- Right angle: An 90 degree angle.
- Obtuse angle: An angle between 90 and 180 degrees.
- Straight angle: A 180 degree angle.
87. Write a JavaScript program to determine if two arrays of integers of the same length are similar. The arrays will be similar if one array can be obtained from another array by swapping at most one pair of elements.
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88. Write a JavaScript program that takes two integers and a divisor. If the given divisor divides both integers and does not divide either, two specified integers are similar. Check whether two integers are similar or not.
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89. Write a JavaScript program to check whether it is possible to replace $ in a given expression x $ y = z with one of the four signs +, -, * or / to obtain a correct expression.
For example x = 10, y = 30 and z = 300, we can replace $ with a multiple operator (*) to obtain x * y = z
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91. Write a JavaScript program to find the maximum possible sum of some of its k consecutive numbers (numbers that follow each other in order) in a given array of positive integers.
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