php - Can I change dyanmic javascript variable depending on user form input? -

my question here if there way change dynamic price calculation depending on name user enters in input field.

i have code works calculating dynamic price in html form. here code:

using input:

<input class="typeahead" type="text" placeholder="amount" name="amount"/> 

my javascript calculates price:

jquery("input[name='amount']").change(function () { if (isnan(parsefloat(this.value)) || !isfinite(this.value)) {     jquery(this).val('');     return false; } var calc = parsefloat(this.value) * 0.95; jquery(this).parents("form").find("input[name='price']").val(calc); }); 

that works fantastic. calculates amount .95 , assigns value price.

if add form:

<input class="stores typeahead" type="text" placeholder="stores" name="name"/> 

what can here able calculate price @ different values depending on store name. example, if enters mcdonalds, want calculate @ .90. if enters target, want calculate @ .92. previous javascript cannot accomplish because calculates @ .95 instead of being able change depending on store entered.

i prefer accomplish javascript because i'm not skilled php.

you can create javascript object this.

var stores = {      "mcdonalds" : .90,      "target" : .92, } var storename = jquery(this).parents("form").find("input[name='name']").val(); console.log(stores[storename]); //output store cost console. 

though think jquery lookup function questionable. i'm sure there better way select textbox. that's general concept you're looking for.