Logical OR of arrays in javascript

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I would like to perform a logical OR operation on arrays in javascript, so that performing this operation on arrays a and b

let a = [0,1,0]
let b = [0,0,5]

gives me

OR(a, b)
[0,1,5]

What would be an efficient and idiomatic way to implement OR?

You could reduce the wanted arrays by taking a mapping and an or function.

const or = (a, b) => a || b,
      mapped = fn => (a, b) => a.map((v, i) => fn(v, b[i]));

var a = [0, 1, 0],
    b = [0, 0, 5],
    c = [a, b].reduce(mapped(or));

console.log(c);

Array.of(), Array elements are numbered, starting with zero. We can get an element by its number in square brackets: let fruits =� The logical OR (||) operator (logical disjunction) for a set of operands is true if and only if one or more of its operands is true. It is typically used with Boolean (logical) values. When it is, it returns a Boolean value. However, the || operator actually returns the value of one of the specified operands, so if this operator is used with non-Boolean values, it will return a non-Boolean value.

Just use || operator in combination with map method by passing a callback function as argument.

let a = [0,1,0]
let b = [0,0,5]

let c = a.map((item, index) => item || b[index]);
console.log(c);

Array, Fortunately, JavaScript provides a data type specifically for storing sequences of values. It is called an array and is written as a list of values between square� The "JavaScript Logical Operators and Arrays" Lesson is part of the full, Introduction to Web Development course featured in this preview video. Here's what you'd learn in this lesson: Logical operators or often used to create complex logical expressions.

Assuming the arrays always have the same length, use .map and ||:

const OR = (a, b) => a.map((aItem, i) => aItem || b[i]);
let a = [0,1,0]
let b = [0,0,5]
console.log(
  OR(a, b)
);

Arrays, Arrays are just regular objects. In Javascript, there are only 6 data types defined – the primitives (boolean, number, string, null, undefined) and object (the� Logical operators are used to determine the logic between variables or values. Given that x = 6 and y = 3 , the table below explains the logical operators: Operator

Data Structures: Objects and Arrays :: Eloquent JavaScript, JavaScript doesn't provide the multidimensional array.This tutorial shows you how to create a JavaScript multidimensional array by using an array of arrays. JavaScript logical operators covering description, example code, output of example, online practice editor and explanation by w3resource.com JavaScript array [ 13

JavaScript Arrays - tips, tricks and examples, Creating arrays in JavaScript is easy with the array literal notation. It consists of two square brackets that wrap optional array elements separated by a comma. Arrays are a special type of objects. The typeof operator in JavaScript returns "object" for arrays. But, JavaScript arrays are best described as arrays. Arrays use numbers to access its "elements". In this example, person[0] returns John:

Learn JavaScript Multidimensional Array By Examples, var items = [ [1, 2], [3, 4], [5, 6] ]; console.log(items[0][0]); // 1 console.log(items[0][1 ]); // 2 console.log(items[1][0]); // 3 console.log(items[1][1]); // 4� The logical AND (&&) operator (logical conjunction) for a set of operands is true if and only if all of its operands are true. It is typically used with Boolean (logical) values. When it is, it returns a Boolean value. However, the && operator actually returns the value of one of the specified operands, so if this operator is used with non-Boolean values, it will return a non-Boolean value.