JavaScript Developer — Easy
Explanation
The method that checks if every element in an array passes a test is the "every()" method in JavaScript. This method returns true if all elements meet the specified condition.
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Related questions
- What does the following code output? console.log('a'); setTimeout(() => console.log('b'), 0); Promise.resolve().then(() => console.log('c')); console.log('d');
- What is the output of the following? ```js const p1 = Promise.resolve(1); const p2 = Promise.reject(new Error('fail')); const p3 = Promise.resolve(3); Promise.allSettled([p1, p2, p3]).then(results => { console.log(results.length); }); ```
- What is the output of the following? ```js class Base { static greet() { return 'Hello from Base'; } } class Child extends Base {} console.log(Child.greet()); console.log(Object.getPrototypeOf(Child) === Base); ```
- What is the output of the following? ```js const map = new Map(); const key = {}; map.set(key, 'value'); console.log(map.get({})); console.log(map.get(key)); ```
- What does `Array.prototype.flat()` do?
- What is the output of the following? ```js const obj = {}; Object.defineProperty(obj, 'x', { get() { return 42; }, set(v) { console.log('set:', v); } }); obj.x = 10; console.log(obj.x); ```