如何在Javascript中删除输入字段的特殊字符？

Question

I have form with 4 fields (item_code, item_name, item_search, description) If user fill the first input field (item_code), at the end it automatically sets the same value for all the other three input field.

While setting the value I want to remove special characters in one field(item search).

So I tried "replace", I don't know what mistake am I doing because I'm a beginner.

item_code: function(frm) {
if(!frm.doc.item_name)
frm.set_value("item_name", frm.doc.item_code);
if(!frm.doc.item_search)
frm.set_value("item_search", frm.doc.item_code.replace(/[^A-Z0-9]/ig, "_");
if(!frm.doc.description)
frm.set_value("description", frm.doc.item_code);
},

Answer 1

i checked replace function is not working properly. change your .replace(/[^A-Z0-9]/ig, "_") with below code.

.replace(/[^a-zA-Z ]/g, "")

it will work.

Answer 2

 var string = 'A2.11^11*111"@'; string = string.replace(/[^0-9a-zA-Z]+/g,''); console.log(string);