typeof
suggest changetypeof is the ‘official’ function that one uses to get the type in javascript, however in certain cases it might yield some unexpected results …
\1. Strings
typeof "String" or
typeof Date(2011,01,01)
“string”
\2. Numbers
typeof 42
“number”
\3. Bool
typeof true (valid values true and false)
“boolean”
\4. Object
typeof {} or
typeof [] or
typeof null or
typeof /aaa/ or
typeof Error()
“object”
\5. Function
typeof function(){}
“function”
\6. Undefined
var var1; typeof var1
“undefined”
Found a mistake? Have a question or improvement idea?
Let me know.
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