Answers for "Identify four entities from the case study and draw an Entity Relationship Diagram (ERD) using the correct cardinality symbols to present the relationships amongst the entities. You do not have to include attributes for any of the entities."

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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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