Ife_part2_javascript_ array de-weight/trim ()

Array de-weight method setfunction Uniqarray (arr) {//sets the array to be    processed first, generating a Set object (Set object allows you to store any type of unique value, whether it is the original value or an object reference.) ), and then convert the Array.from into an array    //Array.from () method to create a new array instance from a similar array or an iterative object.    return Array.from (New Set (arr))}var a = [1, 3, 5, 7, 5, 3];var B = Uniqarray (a); Console.log (b);//implement a simple trim function to remove a A string header and trailing white space character function Simpletrim (str) {    return Str.trim ()}//use regular expressions to remove the trailing whitespace character of the string, function trim (str) {    Return Str.replace (/(^\s*) | ( \s*) $/g, "");}

　　

Ife_part2_javascript_ array de-weight/trim ()