the logic here doesn't make sense in javascript-CodePudding

cellColor = {};
cellColor['cel32'] = 'blue';
cellColor['cel24'] = 'blue';
cellColor['cel16'] = 'blue';
cellColor['cel8'] = 'blue';

console.log(
  (((cellColor['cel32'] === cellColor['cel24']) === cellColor['cel16']) ==
    cellColor['cel8']) ==
  'blue',
);

//the output is false here why?

CodePudding user response：

You are comparing boolean with blue so that will return false

you are comparing true with blue which will return false.

cellColor = {};
cellColor['cel32'] = 'blue';
cellColor['cel24'] = 'blue';
cellColor['cel16'] = 'blue';
cellColor['cel8'] = 'blue';

const a = cellColor['cel32'] === cellColor['cel24'];
console.log(a); // true

const b = cellColor['cel16'];
// Here a is true and b is blue
const c = a === b;
console.log(c); // true is not equal to 'blue' so return false

// Here c is false and cellColor['cel8'] is blue
const d = c === cellColor['cel8'];
console.log(d); // false is not equal to 'blue' so return false

const e = d === 'blue';
console.log(e);// false is not equal to 'blue' so return false

cellColor = {};
cellColor['cel32'] = 'blue';
cellColor['cel24'] = 'blue';
cellColor['cel16'] = 'blue';
cellColor['cel8'] = 'blue';

const a = cellColor['cel32'] === cellColor['cel24'];
console.log(a); // true

const b = cellColor['cel16'];
const c = a === b;
console.log(c); // true is not equal to 'blue' so return false

const d = c === cellColor['cel8'];
console.log(d); // false is not equal to 'blue' so return false

const e = d === 'blue';
console.log(e);// false is not equal to 'blue' so return false