Convert string to number and add one

Question

Convert string to number and add one

Question

I want to turn the value I get from the id into a number and add one to it then pass the new value into the dosomething() function to use. When I tried this and the value is one I get back 11 not 2.

$('.load_more').live("click",function() { // When user clicks
    var newcurrentpageTemp = $(this).attr("id") + 1;// Get id from the hyperlink
    alert(parseInt(newcurrentpageTemp));
    dosomething();
});

Niklas

2013/05/23

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Have you tried flip-flopping it a bit?

var newcurrentpageTemp = parseInt($(this).attr("id"));
newcurrentpageTemp++;
alert(newcurrentpageTemp));

Doozer Blake

2011/10/06

I believe you should add 1 after passing it to parseInt

$('.load_more').live("click",function() { //When user clicks
          var newcurrentpageTemp = parseInt($(this).attr("id")) + 1;   
          alert(newcurrentpageTemp);
          dosomething();
      });

http://jsfiddle.net/GfqMM/

cyco130

2011/10/06

$('.load_more').live("click",function() { //When user clicks
          var newcurrentpageTemp = parseInt($(this).attr("id")) + 1
          dosomething(newcurrentpageTemp );
      });

http://jsfiddle.net/GfqMM/

Sedat Başar

2011/10/06

Parse the Id as it would be string and then add.

e.g.

$('.load_more').live("click",function() { //When user clicks
    var newcurrentpageTemp = parseInt($(this).attr("id")) + 1;//Get the id from the hyperlink
    alert(newcurrentpageTemp);
    dosomething();
});

Jayendra

2011/10/06

I've got this working in a similar situation for moving to next page like this:

$("#page_next").click(function () {
    $("#pageNumber").val(parseInt($("#pageNumber").val()) + 1);
    submitForm(this);
    return false;
});

You should be able to add brackets to achieve what you want something like this:

var newcurrentpageTemp = (parseInt($(this).attr("id"))) + 1;//Get the id from the hyperlink

Chris Snowden

2011/10/06

Justin Niessner · Accepted Answer · 10/6/2011 12:55:27 PM

Accepted Answer

Assuming you are correct and your id is a proper number (without any other text), you should parse the id and then add one to it:

var currentPage = parseInt($(this).attr('id'), 10);
++currentPage;

doSomething(currentPage);

Justin Niessner

2011/10/06