Change Eclipse "Build Automatically" time interval?

Is there a way to change the default time interval for an automa开发者_如何学Pythontic build in Eclipse?

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Turn off build automatically (in the project menu, uncheck build automatically) and then get into the habit of build each time you decide to start your app/application (ctrl + b).

Why do you want this though? As @Nirmal pointed out, there isn't a way to do exactly what you're asking for. Usually though - from my experience - building is pretty fast and when you do build automatically it doesn't have to run a full build. Is it taking forever to validate your javascript? I've had this problem with more recent versions of eclipse, but not the most recent. If this is the case, just search stackoverflow/google for turning off javascript validation in Eclipse.

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it will automatically build content that is changed , no need explicit interval to define