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Home/ Questions/Q 7953389
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Editorial Team
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Editorial Team
Asked: June 4, 20262026-06-04T03:08:50+00:00 2026-06-04T03:08:50+00:00

In javascript i want to determine if a string is composed only of Hexadecimal

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In javascript i want to determine if a string is composed only of Hexadecimal characters or not. i.e., it i want to check if the string is a consecutive block of characters in the range a-f, A-F, 0-9. How can i do this in javascript.

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  1. Editorial Team
    Editorial Team
    2026-06-04T03:08:52+00:00Added an answer on June 4, 2026 at 3:08 am

    Something like:

    /^[a-f0-9]+$/i.test("ABCDEF")

    Or

    var r = new RegExp("^[a-f0-9]+$", 'i')
    r.test("ABCDEF");
    
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