7 Javascript useful array methods with example

 The following are the most useful 8 javascript array method you should know with example 

1. Slice

The slice() method selects a part of an array and returns a new array 

Example:

    const array = ["html","space"];
    array.slice(1,1);

    //["html","space"]


2. Push

The push () method adds new elements to the end of an array and returns the new length.

Example :
    const array = ["html","space"];
    array.push("code");

    //["html","space","code"]

 

3. ToString

The toString() method converts an array to a string.

Example:

     const array = ["html","space","code"];
    const convertedString = array.toString();
     console.log(convertedString)

    //" html,space, code"


4. Map

The map() method creates a new array with the results of calling a function for every array element.

Example:
    const array = [4,6,8,10];
    const mappedArray = array.map(item=>item+2);
    console.log(mappedArray);
    
    // [6,8,10,12]


5. Shift

The shift() method removes the first element of an array.

Example:

    const array = ["html""space""code"];
    array.shift();
    console.log(array)
    
    //["space","code"]    



6. Pop

The pop() method removes the last element of an array

Example:
    const array = ["html""space""code"];
    array.pop();
    console.log(array)
    
    //["html","sapce"]


7. Filter

The filter() method creates an array filled with all array elements that pass a test.

Example:
    
    const array = ["html""space""code"];
    const filtered = array.filter(w=>w.length>4);
    console.log(filtered)

    //["space"]



7 Javascript useful array methods with example




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