Created
February 7, 2018 16:42
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A/B Test Helper Functions
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// Get URL Parameter | |
function getQueryVariable(variable) { | |
var query = window.location.search.substring(1); | |
var vars = query.split("&"); | |
for (var i=0;i<vars.length;i++) { | |
var pair = vars[i].split("="); | |
if(pair[0] == variable){return pair[1];} | |
} | |
return(false); | |
} | |
// Set random number | |
function setABVar( variation_count ) { | |
var varID = Math.floor( Math.random() * variation_count ); | |
return varID; | |
} | |
function chooseVariation( experimentID, variations, param ) { | |
if ( typeof cxApi === 'undefined' ) { | |
return 0; | |
} | |
var chosenVariation = cxApi.getChosenVariation( experimentID ); | |
if ( chosenVariation < 0 ) { | |
cxApi.setChosenVariation( setABVar( variations ) , experimentID ); | |
chosenVariation = cxApi.getChosenVariation( experimentID ); | |
} | |
if ( getQueryVariable( param ).length > 0 ) { | |
chosenVariation = parseInt( getQueryVariable( param ) ); | |
} | |
return chosenVariation; | |
} |
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