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Editorial Team
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Asked: 2026-06-17T21:33:18+00:00

$(#para).text(”) .append($(input.selected).map(function() { return $(this).val() || null; }).get().join(<br/> )); what is the purpose of

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$("#para").text('')
.append($("input.selected").map(function() {
return $(this).val() || null;
}).get().join("<br/> "));

what is the purpose of $(this).val() || null; here?

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1 Answer

  1. Editorial Team

    val() returns the value of an input as a string. An empty string is a falsy value in JS, what that means is that if the string is empty then it will evaluate as false. The OR short-circuit operator || evaluates the code after it if the previous condition is false. So what that code is doing is returning null if the value is empty.

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