Question

How to move an item of an array to the first position in Node.js

Answer 1

let arr = ["node.js", "java", "c", "c++", "c#"];
  
const first = "c";
  
arr.sort(function(x, y){ return x == first ? -1 : y == first ? 1 : 0; });
   
console.log(arr); 
   
   
  
   
/*
run:
   
[ 'c', 'node.js', 'java', 'c++', 'c#' ]
   
*/

 

 

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Answer 2

let arr = ["node.js", "java", "c", "c++", "c#"];
  
const index = 2;
  
arr.unshift(arr.splice(index, 1)[0]);
    
console.log(arr); 
   
   
  
   
/*
run:
   
[ 'c', 'node.js', 'java', 'c++', 'c#' ]
   
*/

 

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Answer 3

let arr = ["node.js", "java", "c", "c++", "c#"];
  
const index = arr.indexOf('c');
  
arr.unshift(arr.splice(index, 1)[0]);
    
console.log(arr); 
   
   
  
   
/*
run:
   
[ 'c', 'node.js', 'java', 'c++', 'c#' ]
   
*/

 

70+ SQL courses for beginners and professionals