β‘ map( ) array method in JavaScript
π‘ One of the most important topics in JavaScript, thus you can't miss it.
π§΅...
π‘ One of the most important topics in JavaScript, thus you can't miss it.
π§΅...
π‘ map( ):
π map() method accepts a callback function once for each array element and constructs a new array.
π It returns a new array and does not change the original array.
π map() method accepts a callback function once for each array element and constructs a new array.
π It returns a new array and does not change the original array.
π The map( ) method doesn't execute the function for an empty array.
π© Syntax:
π© Syntax:
Example 1:
π₯° Suppose, if you want to add "5" to each element of the array, we can quickly achieve this goal using the map() method.
π The new array will be "add"
π₯° Suppose, if you want to add "5" to each element of the array, we can quickly achieve this goal using the map() method.
π The new array will be "add"
π© In the above snippet:
π I've passed a function to the map() method and it takes 2 parameters.
π element: It's a required parameter, that is the value of the current item.
π index: Optional, it is the current index of the array element that is being processed.
π I've passed a function to the map() method and it takes 2 parameters.
π element: It's a required parameter, that is the value of the current item.
π index: Optional, it is the current index of the array element that is being processed.
Example 2:
π₯° Now, if I want to find the square of each element of the array, then we can also do this using map( ) method.
π The new array will be "square"
π₯° Now, if I want to find the square of each element of the array, then we can also do this using map( ) method.
π The new array will be "square"
Example 3:
π₯° And now if we want to convert each element of the array into binary.
π The new array will be "binary"
π₯° And now if we want to convert each element of the array into binary.
π The new array will be "binary"
Example 4:
π₯° We can use it at many places like if we want to receive an array with converted currency to INR from USD.
π The new array will be "inr"
π₯° We can use it at many places like if we want to receive an array with converted currency to INR from USD.
π The new array will be "inr"
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That's all for now, we will meet in the next threadπ
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Thank you so much for staying to the end of this threadπ
π Follow Me @ATechAjay
For:
π Web Development
β¨ JavaScript
π Writing Skill
π₯ Motivation
πΉ Growth
β But Not For Only Resources & Shitpost π
Thank you so much for staying to the end of this threadπ
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