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Core JavaScript Keyword Quiz
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JavaScript
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Write a function to implement a debounce function in JavaScript. What is the correct implementation?
A
function debounce(func, delay) { return function(...args) { return func.apply(this, args); }; }
B
function debounce(func, delay) { let timeout; return function(...args) { clearTimeout(timeout); timeout = setTimeout(() => func.apply(this, args), delay); }; }
C
function debounce(func, delay) { return function(...args) { return setTimeout(() => func.apply(this, args), delay); }; }
D
function debounce(func, delay) { let timeout; return function(...args) { if (timeout) { clearTimeout(timeout); } timeout = setTimeout(() => func.apply(this, args), delay); }; }