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Home/ Questions/Q 9160079
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Editorial Team
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Editorial Team
Asked: June 17, 20262026-06-17T13:39:02+00:00 2026-06-17T13:39:02+00:00

if (!variable) ui.notify(‘functionality not available due to…’); When doing this simple check in IE

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if (!variable) ui.notify('functionality not available due to...');

When doing this simple check in IE we get SCRIPT5009: ‘variable’ is undefined, where it is exactly what we are trying to check but not fail so disgracefully. How to make this graceful fail come true?

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  1. Editorial Team
    Editorial Team
    2026-06-17T13:39:04+00:00Added an answer on June 17, 2026 at 1:39 pm

    Next code can help you:

    if (typeof variable === "undefined") console.log("undefined");
    else console.log("defined"); 
    
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