Lesson: 13 | Logical Operators

Notes

&& is same as and.

document.write(true && true);

Output: true

document.write(true && false);

Output: false

document.write(false && true);

Output: false

document.write(false && false);

Output: false

|| is same as or.

document.write(true || true);

Output: true

document.write(true || false);

Output: true

document.write(false || true);

Output: true

document.write(false || false);

Output: false

! is same as not (opposite)

var x = true;
document.write(!x);

Output: false

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