The actual difference between Javascript's
== and
=== operators is that the
== operator is less strict when comparing the operands. For example,
1=="1" evaluates to
true while
1==="1" evaluates to
false.
Full description can be found on ECMAScript standard, at
http://www.ecma-international.org/publications/files/ECMA-ST/ECMA-262.pdf, on chapter
11.9.
A practical tip to quickly understand "what would
== do" is to illustrate what will happen when you call
.toString() on both operands. Thinking that way, it will make sense that
1.toString()=="1". This is
not the precise algorithm for
==, but it does provide a good approximation, useful for daily work.
Currently a .NET Team Leader at a mid-sized software company, I've started coding at the age of 5, using BASIC on a ZX-Spectrum 48 computer.
Gradually i've moved up the generations, from ZX assembly language, through c and Pascal, I've became an IS programmer on VB6 and SQL-Server, eventually upscaling to c#, and doing OOD stuff for a living.
I'm about to get my Bachelor's degree in Computer Science this semester, and looking forward to go on with M.Sc. in the area of Algorithmics.
So I work in Information Systems, and my hobby is "learning and developing algorithms". Can you get more geeky than that ?
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