←
^
→
JavaScript
Relational Operators
< > <= >=
Is property
in
object?
var p = {x:1,y:1}; 'y' in p
var p = {x:1,y:1}; 'z' in p
Is object
instanceof
class
constructor?
var d = new Date(); d instanceof Date
var d = new Date(); d instanceof Object
var d = new Date(); d instanceof Number
José M. Vidal
.
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