Tuesday, June 2, 2020

கார்களின் பின் கண்ணாடியில் உள்ள கோடுகள் எதற்காக?

Windscreen Defogger, used on a vehicle's backglass and/or side view mirrors, often consist of a series of parallel linear resistive conductors in or on the glass. When power is applied, these conductors heat up, thawing ice and evaporating condensation from the glass. These conductors may be composed of a silver-ceramic material printed and baked onto the interior surface of the glass, or may be a series of very fine wires embedded within the glass. The surface-printed variety is prone to damage by abrasion, but can be repaired easily with a conductive paint material.

Monday, June 1, 2020

What are the difference between "==" and "==="?

The == will not check the type of operands whereas === checks both type and value of the operands.

Other way of saying is, === will convert the operands to same type and then do the comparison. But === does not do any conversion. It simply return false if any of them in different type.

Saturday, May 30, 2020

What is database?

Database is logically a coherent collection of data with some inherent meaning, representing some aspect of real world and which is designed, build and populated with data for a specific purpose.