javascript - How to add input values -

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i have 4 text boxes namely customer_phy_tot, customer_che_tot, customer_bio_tot. i'm trying add , display 3 input boxes values 4th input, customer_pcb_tot.

customer_bio_obt.blur(function(){     var customer_pcb_tot = isnan(parseint($("#customer_phy_tot").val() + $("#customer_che_tot").val() + $("#customer_bio_tot").val())) ? 0 :( $("#customer_phy_tot").val() + $("#customer_che_tot").val() + $("#customer_bio_tot").val())     $("#customer_pcb_tot").val(customer_pcb_tot); });

the problem instead of adding code treating string. suppose have values 10, 15 , 5 respectively. it's supposed display 30 in 4th box in case showing 10155.

any appreciated.

you're using parseint() already, need use on string values returned each individual val() call. note use of ternary expression redundant. try this:

customer_bio_obt.blur(function() {     var customer_pcb_tot = parseint($("#customer_phy_tot").val(), 10) + parseint($("#customer_che_tot").val(), 10) + parseint($("#customer_bio_tot").val(), 10);     $("#customer_pcb_tot").val(customer_pcb_tot || 0); });

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