Questions: What is scope? Your explanation should include the idea of global vs. block scope. Why are global variables avoided? Explain JavaScript's strict mode What are side effects, and what is a pure function?
| // Create a function called computeArea that takes two arguments: width and height. | |
| // It returns the area of a rectangle whose width is width and height is height. | |
| // So computeArea(2, 2) would return 4, and computeArea(3, 5) would return 15. | |
| const computeArea = (width, height) => width * height; | |
| // Create 2 functions, one called celsToFahr that converts Celsius to Fahrenheit and | |
| // another called fahrToCels that converts Fahrenheit to Celsius. celsToFahr takes one | |
| // argument, celsTemp, and fahrToCels takes one argument, fahrTemp. | |
| // [°F] = [°C] × 9⁄5 + 32 | |
| // [°C] = ([°F] − 32) × 5⁄9 |
| // Create a function called wisePerson that takes 2 arguments: wiseType and whatToSay. | |
| // This function takes a block of text and presents it as a quote from the wise person. | |
| // wiseType is the person the quote will be attributed to, and whatToSay is what the wise person will be quoted as saying. | |
| // When called like this: wisePerson('goat', 'Hello world') should return the string 'A wise goat once said: "Hello world".' | |
| const wisePerson = (wiseType, whatToSay) => `A wise ${wiseType} once said: "${whatToSay}"` | |
| // Create a function that takes a single argument: whatToShout. |
| <?php | |
| // Remove custom post type name from URL for special posts | |
| function remove_cpt_slug( $post_link, $post, $leavename ) { | |
| if ( 'special' != $post->post_type || 'publish' != $post->post_status ) { | |
| return $post_link; | |
| } | |
| $post_link = str_replace( '/' . $post->post_type . '/', '/', $post_link ); |