parseInt with jQuery

Question

Can someone help me figuring out why the following jQuery code doesn t work  I want to return a integer from an user input   var test   parseInt     testid       Thank you  amp  bye

User · Accepted Answer

var test   parseInt     testid   val    10     You have to tell it you want the value of the input you are targeting   And also  always provide the second argument  radix  to parseInt   It tries to be too clever and autodetect it if not provided and can lead to unexpected results   Providing 10 assumes you are wanting a base 10 number

User · Answer

var test   parseInt     testid   val

User · Answer

Two issues    You re passing the jQuery wrapper of the element into parseInt  which isn t what you want  as parseInt will call toString on it and get back   object Object    You need to use val or text or something  depending on what the element is  to get the string you want  You re not telling parseInt what radix  number base  it should use  which puts you at risk of odd input giving you odd results when parseInt guesses which radix to use    Fix if the element is a form field                                    vvvvv-- use val to get the value var test   parseInt     testid   val    10                                             -- tell parseInt to use decimal  base 10    Fix if the element is something else and you want to use the text within it                                    vvvvvv-- use text to get the text var test   parseInt     testid   text    10                                              -- tell parseInt to use decimal  base 10

[jquery] parseInt with jQuery

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