[Vuejs]-Using jquery method in vue?

You can do this easily in your developer console:

x = "12,345.67"

x.replace(/,/g,'')  // output: "12345.67"

parseInt(x.replace(/,/g,''))  // output: 12345

I copy-pasted your regexp into my experiment above in developer console. So there is nothing wrong with your usage of replace.

Now you need to find out if your this.purchase is a string or some object. Most likely it is an object.

You may use vue-devtools to debug this issue: https://github.com/vuejs/vue-devtools

It is the same way, no matter u are using vue.js or not.