I am debugging some JavaScript and can’t explain what this || does: function (title, msg) { var title = title || 'Error'; var msg = msg || 'Error on...
According to the R language definition, the difference between & and && (correspondingly | and ||) is that the former is vectorized while the latter is not. According to...
Given this snippet of JavaScript… var a; var b = null; var c = undefined; var d = 4; var e="five"; var f = a || b || c...