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POSuggest elements of an object array which is not there in another object array
 

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  1. POSuggest elements of an object array which is not there in another object array
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    <p>I have two array of objects.</p> <pre><code>Array1 : [{"id":20,"stName":"ABC","className":"A"},{"id":30,"stName":"ABD","className":"B"},{"id":40,"stName":"ABE","className":"C"},{"id":50,"stName":"ABF","className":"D"}] Array2 : [{"id":110,"stName":"ASA","className":"X"},{"id":120,"stName":"ASB","className":"Y"},{"id":130,"stName":"ASC","className":"A"},{"id":140,"stName":"ASD","className":"C"},{"id":150,"stName":"ASE","className":"Z"}] </code></pre> <p>Here </p> <blockquote> <p>array1 have classNames as A, B, C, and D.</p> <p>array2 have classNames as X, Y, A, C, and Z</p> </blockquote> <p>A function should return the <code>classNames</code> of <code>array2</code> such a way that the <code>classNames</code> does not belong to <code>array1</code></p> <blockquote> <p>The return from the function will be an array which contains X, Y, and Z as elements.</p> </blockquote> <p>How to write this function in <code>javascript</code> with less time complexity, because array1 and array2 may have more than 20 objects.</p> <p><strong>Edit</strong> </p> <p>This is the script which I used using <code>for loop</code></p> <pre><code>array1 = [{"id":20,"stName":"ABC","className":"A"},{"id":30,"stName":"ABD","className":"B"},{"id":40,"stName":"ABE","className":"C"},{"id":50,"stName":"ABF","className":"D"}] array2 = [{"id":110,"stName":"ASA","className":"X"},{"id":120,"stName":"ASB","className":"Y"},{"id":130,"stName":"ASC","className":"A"},{"id":140,"stName":"ASD","className":"C"},{"id":150,"stName":"ASE","className":"Z"}] function findSuggest(){ var sug = []; for(array2_count=0;array2_count &lt; array2.length;array2_count++){ for(array1_count=0;array1_count &lt; array1.length;array1_count++){ if(array2[array2_count].className == array1[array1_count].className){ break; } else{ if(array1_count == (array1.length - 1)){ sug[sug.length] = array2[array2_count].className; } } } } } </code></pre> <p>Here <code>sug[]</code> will have all suggestions.</p>
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    1. This table or related slice is empty.
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    1. USJavad Shareef
    1. USJavad Shareef
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
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      1. POSuggest elements of an object array which is not there in another object array
      1. This table or related slice is empty.
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    2. VO
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      1. POSuggest elements of an object array which is not there in another object array
      1. This table or related slice is empty.
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      1. POSuggest elements of an object array which is not there in another object array
      1. This table or related slice is empty.
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    1. CODo you have anything beyond the task description? This sounds like a homework assignment and you want someone to do it for you.
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      1. USTomalak
    2. COThis is a part of a product am working on, and the data which I provided is just for simplify the question. This snippet a part of an algorithm, which need more efficiency. I already implemented this with normal `for` loop, but want to improve the efficiency of it.
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      1. POSuggest elements of an object array which is not there in another object array
      1. USJavad Shareef
    3. CO@lucuma I tried this by iterating to every element and compare its values. It is more time consuming if more number of objects are there in an array.
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      1. POSuggest elements of an object array which is not there in another object array
      1. USJavad Shareef
 

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