Data structures are ways of organizing data in a computer so that it can be used efficiently. Algorithms are step-by-step procedures for solving problems.
Example of a data structure and algorithm in JavaScript:
// Data structure: Array
const numbers = [1, 2, 3, 4, 5];
// Algorithm: Linear search
function findNumber(array, number) {
for (let i = 0; i < array.length; i++) {
if (array[i] === number) {
return i;
}
}
return -1;
}
// Find the index of the number 3 in the array
const index = findNumber(numbers, 3);
// If the index is not equal to -1, then the number was found
if (index !== -1) {
console.log(`The number ${numbers[index]} was found at index ${index}`);
} else {
console.log('The number was not found in the array');
}
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