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math.random
math.random()
Description
Generates a pseudo-random value of type DOUBLE in the range of [0, 1), inclusive of 0 and exclusive of 1.
Return type
FLOAT
Code samples
The following example checks whether the random value is in the range [0, 1).
none
if(math.random() >= 0 and math.random() < 1) = true
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Last updated 2025-07-14 UTC.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-07-14 UTC."],[[["\u003cp\u003e\u003ccode\u003emath.random()\u003c/code\u003e generates a pseudo-random floating-point number.\u003c/p\u003e\n"],["\u003cp\u003eThe generated value from \u003ccode\u003emath.random()\u003c/code\u003e falls within the range of 0 (inclusive) up to, but not including, 1.\u003c/p\u003e\n"],["\u003cp\u003eThis function is supported in Rules and Search environments within the context of the documentation.\u003c/p\u003e\n"],["\u003cp\u003eThe return type of the function is \u003ccode\u003eFLOAT\u003c/code\u003e.\u003c/p\u003e\n"]]],[],null,["### math.random\n\nSupported in: \n[Rules](/chronicle/docs/detection/default-rules) [Search](/chronicle/docs/investigation/udm-search) \n\n math.random()\n\n#### Description\n\nGenerates a pseudo-random value of type DOUBLE in the range of `[0, 1)`, inclusive of 0 and exclusive of 1.\n\n#### Return type\n\n`FLOAT`\n\n#### Code samples\n\nThe following example checks whether the random value is in the range `[0, 1)`.\n`none\nif(math.random() \u003e= 0 and math.random() \u003c 1) = true`"]]
