JAVASCRIPT

8.1.2. Array Length¶

/*To check the length of an array, use the length property, just like
with strings. JavaScript array length is NOT fixed, meaning you can
add or remove items dynamically.*/

//Print out the length of two arrays.
let emptyArray = [];
console.log(emptyArray.length);

let programmingLanguages = ["JavaScript", "Python", "Java", "C#"];
console.log(programmingLanguages.length);

//0
//4

8.1.4. Array Length or .length

/*What is the length of the two arrays?
Hint: look closely at the quotes in the classes array.*/

let classes = ["science, computer, art"];
console.log(classes.length); 
//1

let teachers = ["Jones", "Willoughby", "Rhodes"];
console.log(teachers.length); 
//3

8.1.2. Array Length¶

int a[17];
size_t n = sizeof(a)/sizeof(a[0]);

8.1.4. Array Length or .length

int a[7];
std::cout << "Length of array = " << (sizeof(a)/sizeof(*a)) << std::endl;