#JavaScript - Short Circuit

short-circuit.js

let isVarAssigned = false

// if isVarAssigned is true, assign the value else assign 'There is no variable assigned' String
const x = isVarAssigned || 'There is no variable assigned'

console.log(x)

// if isVarAssigned is true go and assign the value 'Yes the variable is assigned' if false assign false
const y = isVarAssigned && 'Yes there is a variable assiged'

console.log(y)
// There is no variable assigned
// false


// good description why and how: http://www.openjs.com/articles/syntax/short_circuit_operators.php