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| //Intermediate Midterm | |
| // 1. How do you make comments and why do you make them? | |
| //You make comments with '//'. It helps to keep track of your logic for future examination. | |
| // 2. Set 3 variables with different data types and console.log them. | |
| console.log(4); | |
| console.log('4'); | |
| console.log(true); | |
| // 3. What are the five primitive data types you have been using. Provide an example of each. | |
| /* string ex: "tacos" | |
| numbers ex: 9 | |
| Boolean ex: true | |
| undefined ex: console.log(undefined) | |
| null ex: var notAValue = null; | |
| */ | |
| // 4. Create a function that console.logs the remainder of 2 numbers. | |
| function remains() { | |
| console.log(9 % 2); | |
| console.log(8 % 2); | |
| } | |
| // 5. Write an example of an if statement. | |
| if (5>8) { | |
| console.log('a'); | |
| } | |
| else if (5 === 8) { | |
| console.log('b'); | |
| } | |
| else { | |
| console.log('c'); | |
| } | |
| // 6. Explain what “scope” means and why it’s important. | |
| /* scope is the parameters of where any given value or variable can be accessed. For example, variables declared in a function cannot be accessed | |
| outside a function. However, a variable declared outside a function can be access in any function, hence the name "global variable" */ | |
| // 7. Create an array and console.log the 3rd item in the array. | |
| var array = ['a','b','c','d']; | |
| console.log(array[2]); | |
| // 8. Create an object and demonstrate how to access a value in it. | |
| var object = { | |
| one: 'a' | |
| two: 'b' | |
| } | |
| console.log(object.one); | |
| // will print a | |
| // 9. Demonstrate how to add a key/value pair to your array. | |
| var array = { | |
| one: 1, | |
| two: 2 | |
| }; | |
| array['one'] = 'new number'; | |
| console.log(array['one']); | |
| //will print new number where the numerical value '1' use to be. | |
| // 10. Create a for loop that prints out all the multiples of 3 between 1 and 100. | |
| for(var i = 1; i <100; i++) { | |
| if (i % 3 === 0) { | |
| console.log(i); | |
| } | |
| } | |
| // 10. Create a while loop that prints out all the multiples of 7 between 1 and 100 in reverse order. | |
| var i = 0; | |
| while(i < 100) { | |
| i++ | |
| if(i % 7 === 0) { | |
| console.log(i); | |
| } | |
| } | |
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