or-operator Archives

What does the construct x = x || y mean?

I am debugging some JavaScript and can’t explain what this || does: function (title, msg) { var title = title || 'Error'; var ...

May 18, 2022
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Boolean operators && and ||

According to the R language definition, the difference between & and && (correspondingly | and ||) is that the former is vectorized while ...

May 17, 2022
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JavaScript OR (||) variable assignment explanation

Given this snippet of JavaScript… var a; var b = null; var c = undefined; var d = 4; var e="five"; var f ...

May 9, 2022
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