jQuery: Test if checkbox is NOT checked

Question

I\'m having trouble figuring this out. I have two checkboxes (in the future will have more):

• checkSurfaceEnvironment-1
• checkSurface

Answer 1

You can also use either jQuery .not() method or :not() selector:

if ($('#checkSurfaceEnvironment').not(':checked').length) {
    // do stuff for not selected
}

JSFiddle Example

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Additional Notes

From the jQuery API documentation for the :not() selector:

The .not() method will end up providing you with more readable selections than pushing complex selectors or variables into a :not() selector filter. In most cases, it is a better choice.