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cpu-intensive-tasks.js
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cpu-intensive-tasks.js
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/**
* Runs CPU-intensive task with blocking the main thread.
* @param cb Callback to call after task is finished.
*/
export function runCpuIntensiveTask(cb) {
function fibonacciRecursive(n) {
if (n <= 1) {
return n;
}
return fibonacciRecursive(n - 1) + fibonacciRecursive(n - 2);
}
fibonacciRecursive(45);
cb();
}
/**
* Runs CPU-intensive task in a smart way, using worker threads, without blocking the main thread.
* @param cb Callback to call after task is finished.
*/
export function runSmartCpuIntensiveTask(cb) {
function fibonacciIterative(n) {
if (n <= 1) {
return n;
}
let prev = 0, curr = 1;
for (let i = 2; i <= n; i++) {
const next = prev + curr;
prev = curr;
curr = next;
}
return curr;
}
fibonacciIterative(45)
cb();
}