0023【Edabit ★☆☆☆☆☆】Using the “&&“ Operator

0023【Edabit ★☆☆☆☆☆】Using the “&&” Operator

language_fundamentals logic validation

Instructions

JavaScript has a logical operator &&. The && operator takes two boolean values, and returns true`` if both values are true``.

Consider `a && b``:

• a is checked if it is true or false.
• If a is false, false is returned.
• b is checked if it is true or false.
• If b is false, false is returned.
• Otherwise, true is returned (as both a and b are therefore true ).

The && operator will only return true for true && true.

Make a function using the && operator.

Examples

and(true, false) // false
and(true, true) // true
and(false, true) // false
and(false, false) // false
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Notes

• N/A

Solutions

function and(a, b) {
    return a && b ;
}

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TestCases

let Test = (function(){
    return {
        assertEquals:function(actual,expected){
            if(actual !== expected){
                let errorMsg = `actual is ${actual},${expected} is expected`;
                throw new Error(errorMsg);
            }
        }
    }
})();

Test.assertEquals(and(true, true), true)
Test.assertEquals(and(true, false), false)
Test.assertEquals(and(false, true), false)
Test.assertEquals(and(false, false), false)
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