Today we are going to see about important functions of arrays that every developer must know. First let us know about little bit of array. Array is nothing but a collection of elements and it contains many built-in properties and methods to resolve any task. Now let’s get deep into the topic.

• some()
• every()
• flat()
• filter()
• forEach()
• findIndex()
• find ()
• sort()
• concat()
• flatmap()

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Some()

The some() method is used to test atleast one element in the array passes the test implemented by the callback function. It is possible to assign a value for this when executing the callback function by using argument.

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