filmov
tv
What is the result of the expression Array.isArray([])? #javascriptinterviewquestions #javascript

Показать описание
- Basic Syntax:
Example:
const myArray = [1, 2, 3];
// Result: isArray is true
- Checking Array-Like Objects:
Example:
const arrayLikeObject = { 0: 'a', 1: 'b', 2: 'c', length: 3 };
// Result: isArrayLike is false (even though it's array-like)
- Handling Arrays from Different Frames:
- Useful for Type Checking:
Example:
function processArray(arr) {
// Perform array-specific operations on 'arr'
// ...
} else {
// Handle the case where 'arr' is not an array
// ...
}
}
- Polyfill for Older Environments:
Example:
};
}
Above points are very useful for interview aspect.
Subscribe to Channel if you want to get more quick interview knowledge like this.
#coding #javascript #interviews #interviewtips #intresting #javascriptengineer #javaforbeginners #javascriptinterviewquestions #javascriptinterview