jQuery check if input has matched name based on keyword

Question

I have a form. In this form I'm tracking the input value through blur event. I have a need that I will take only the values if input name has or contains txt_asnLineRepeat. My problem is that my selector is always undefined. I need to have true or false as return. Please help. Here's my code.

<input type="text" name="txt_asnLineRepeat" value="1000" size="10"/>
<input type="text" name="txt_asnLineRepeat_0" value="200" size="10"/>
<input type="text" name="txt_asnLineRepeat_1" value="500" size="10"/>
<input type="text" name="DeliveryDate"/>
<input type="text" name="TrackingNo"/>

$('#frmDocument input:not(.button),select').on("blur", function () {
    var selector = $(this);
    var name = selector.attr('name');
    //check if selector name contains txt_asnLineRepeat 
    //should return true or false
    var hasResult = selector.attr("name:contains('txt_asnLineRepeat')")
    //hasResult always gives me undefined. Return must be true or false or 1 or 0.
});

Rory McCrossan · Accepted Answer · 2016-08-16 08:29:23Z

3

You could save the logic in the event handler by only attaching the event to the relevant elements by using the 'attribute starts with' selector:

$('#frmDocument input[name^="txt_asnLineRepeat"]').on("blur", function () {
    // your logic here...
});

answered Aug 16, 2016 at 8:29

Rory McCrossan

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eisbehr · Accepted Answer · 2016-08-16 08:28:00Z

2

You can use indexOf to look for the string inside name. But only if you want to do further stuff in your event handler. Otherwise go with @RoryMcCrossan answer!

var hasResult = selector.attr("name").indexOf("txt_asnLineRepeat") >= 0;
// or
var hasResult = name.indexOf("txt_asnLineRepeat") >= 0;

answered Aug 16, 2016 at 8:28

eisbehr

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