Answers for "Choose the correct option: (1) Natural join removes the duplicate attributes. (2) Outer join replaces the missing data with nulls"

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Better Array check with Array.isArray Because arrays are not true array in JavaScript, there is no simple typeof check. No problem! Use the method Array.isArray to check…

var colors=["red","green","blue"];

if(Array.isArray(colors)){
    //colors is an array
}
Posted by: Guest on July-22-2019

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