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POHow to apply values to pattern for all combinations in javascript?
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  1. POHow to apply values to pattern for all combinations in javascript?
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    copied!<p>I have following 2 dimensional array input:</p> <pre><code> var arr = [ ['A', ['Sun','Moon']], ['B', ['Cat','Dog']], ['C', ['John','Peter','Zora']] ]; </code></pre> <p>Using that input, I want all combinations applied to a given pattern in javascript: </p> <p>The placeholders in the pattern are in following format: $(<em>name</em>)</p> <p><em>Here are some sample patterns with result:</em></p> <pre><code> var pattern1 = "$(A) / $(A)"; /* Expected Result "Sun / Sun" "Sun / Moon" "Moon / Sun" "Moon / Moon" */ var pattern2 = "$(A)--$(B)"; /* Expected Result "Sun--Cat" "Sun--Dog" "Moon--Cat" "Moon--Dog" */ var pattern3 = "$(C) + $(B)"; /* Expected Result "John + Cat" "John + Dog" "Peter + Cat" "Peter + Dog" "Zora + Cat" "Zora + Dog" */ var pattern4 = "$(A) - $(A) * ( $(B) + $(C) )"; /* Expected Result "Sun - Sun * ( Cat + John )" "Sun - Sun * ( Cat + Peter )" "Sun - Sun * ( Cat + Zora )" "Sun - Sun * ( Dog + John )" "Sun - Sun * ( Dog + Peter )" "Sun - Sun * ( Dog + Zora )" "Sun - Moon * ( Cat + John )" "Sun - Moon * ( Cat + Peter )" "Sun - Moon * ( Cat + Zora )" "Sun - Moon * ( Dog + John )" "Sun - Moon * ( Dog + Peter )" "Sun - Moon * ( Dog + Zora )" "Moon - Sun * ( Cat + John )" "Moon - Sun * ( Cat + Peter )" "Moon - Sun * ( Cat + Zora )" "Moon - Sun * ( Dog + John )" "Moon - Sun * ( Dog + Peter )" "Moon - Sun * ( Dog + Zora )" "Moon - Moon * ( Cat + John )" "Moon - Moon * ( Cat + Peter )" "Moon - Moon * ( Cat + Zora )" "Moon - Moon * ( Dog + John )" "Moon - Moon * ( Dog + Peter )" "Moon - Moon * ( Dog + Zora )" */ </code></pre> <p>The pattern can be any combination (with repeating placeholders) and any length.</p> <p>Can someone help me with an algorithm in javascript?</p> <p>Thank you.</p>
 

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