I am trying out google web toolkit for the first time by making a simple calculator app. I have a string I need to evaluate, for example “123+32”. How can I do this with GWT?
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I am trying out google web toolkit for the first time by making a simple calculator app. I have a string I need to evaluate, for example “123+32”. How can I do this with GWT?
Because GWT is java, you’ll have to split your string, in
123+32, then turn the numeric strings into actual integers (Integer.parseInt) and then based on the operator string actually do the sum.I’m guessing you could also use JSNI and do a javascript
evalon the string, but remember that’s very dangerous unless you validate the user input, as they might end up running arbitrary code.