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Editorial Team
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Editorial Team
Asked: June 1, 20262026-06-01T18:30:20+00:00 2026-06-01T18:30:20+00:00

Possible Duplicate: JavaScript logic for isNaN() Hey all I want is to check that

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Possible Duplicate:
JavaScript logic for isNaN()

Hey all I want is to check that the entered value in a textbox is not a number or without using the function isNaN();. Is there any way?

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  1. Editorial Team
    Editorial Team
    2026-06-01T18:30:22+00:00Added an answer on June 1, 2026 at 6:30 pm
    parseFloat(value)!== +value;
    

    But what is wrong with isNaN(value)?

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