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example.1.js
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example.1.js
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/**
* No operation
**/
const noop = () => { };
/**
* Active sleep
* For demonstration purposes only
**/
const sleep = (time) => {
console.log(`Blocking sleep ${time / 1000}s`);
const stop = new Date().getTime();
while (new Date().getTime() < stop + time) {
noop();
}
};
/**
* One second addition, blocking
**/
const longAdd = (a, b) => {
console.log(`Thinking about: ${a} + ${b}`);
sleep(3000);
console.log(`Done thinking about: ${a} + ${b}`);
const sum = a + b;
return sum;
};
/**
* One second multiplication, blocking
**/
const longMultiply = (a, b) => {
console.log(`Thinking about: ${a} * ${b}`);
sleep(1000);
console.log(`Done thinking about: ${a} * ${b}`);
const sum = a * b;
return sum;
};
console.log('--A--');
const sum = longAdd(2, 3);
console.log(`Sum: ${sum}`);
console.log('--B--');
const product = longMultiply(4, sum);
console.log(`Product: ${product}`);
console.log('--C--');
/**
--A--
Thinking about: 2 + 3
Blocking sleep 3s
Done thinking about: 2 + 3
Sum: 5
--B--
Thinking about: 4 * 5
Blocking sleep 1s
Done thinking about: 4 * 5
Product: 20
--C--
**/