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difference between | and || in js

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Blue-eyed Bug answered on November 3, 2021 Popularity 9/10 Helpfulness 1/10

answer difference between | and || in js

related difference between || and ?? in js

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difference between | and || in js

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const a = 0;
// a || 10 --> Will result in 10, as || operator considers 0 as falsy value and resulting the right side operand
console.log(`a || 10 = ${a || 10}`);
// a ?? 10 --> Will result in 0, as ?? operator considers 0 as truthy value and resulting the left side operand
console.log(`a ?? 10 = ${a ?? 10}`);

Popularity 9/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: between difference javascript

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Contributed on Sep 01 2022

Blue-eyed Bug

0 Answers Avg Quality 2/10

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difference between || and ?? in js

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// The main difference is that nullish coalescing(??) operator will only
// give the result as the right operand only if the left operand is either null or undefined.

// Whereas the OR(||) operator will give the result as right operand 
// for all the falsy values of the left operand.

const a = 0;
// a || 10 --> Will result in 10, as || operator considers 0 as falsy value and resulting the right side operand
console.log(`a || 10 = ${a || 10}`);
// a ?? 10 --> Will result in 0, as ?? operator considers 0 as truthy value and resulting the left side operand
console.log(`a ?? 10 = ${a ?? 10}`);

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: stackoverflow.com

Tags: between

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Contributed on Nov 03 2021

Anxious Alligator

0 Answers Avg Quality 2/10

what is the difference between ?? and || javascript

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// What is the difference between ?? and || javascript/typescript
The difference between the two operators boils down to the difference 
between falsy and null/undefined. Where the logical or (||) operator takes 
the right operand in the case of a falsy value — which includes empty 
string, 0, false, NaN, etc. The nullish coalescing operator (??) takes 
the right operand only when the left side is set to null or undefined.
For example:
console.log(0 || 1); console.log("" || "a"); console.log(NaN || 1);
// 1				 "a"					 1
console.log(0 ?? 1); console.log("" ?? "a"); console.log(Nan ?? 1);
// 0				 ""						 Nan
console.log(undefined || 1);
// 1
console.log(undefined ?? 1);
// 1

Popularity 10/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: between

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Contributed on Jan 24 2023

Badie96

0 Answers Avg Quality 2/10

difference between | and || in js

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