How to change custom value in a array using for each loop?

Question

I have the following array, I would like to implement a function that will loop through the array, and replaces the names.val = '', except the second item or index[1]. I tried foreach function. but i don't know how to implement it properly

names = [
{
  name: 'first',
  inputType: 'number',
  val: void 5
},
{
  name: 'second',
  inputType: 'number',
  val: void 2
},
{
  name: 'third',
  inputType: 'text',
  val: void 3
},

]

Tried the following

 resetValues() {
 let names = this.names
 names.forEach((names:any, index:number)=>{
  if(index=1){
   names[1] = names[1].val
 } else{
   names = ''
 }
})
}

index=1 should be index === 1, and you probably want to use names.val. Reusing the same variable name over and over, shadowing the last, is quite confusing btw. I also don't understand, why you use a different number ever time for void — ASDFGerte
– ASDFGerte, Commented Sep 26, 2019 at 20:54
... and on top you should not do anything for index===1, just do names.val = '' in case of index !== 1 — devnull69
– devnull69, Commented Sep 26, 2019 at 20:57

Lonnie Best · Accepted Answer · 2019-09-26 21:10:15Z

1

My understanding is that you want to change the val property to an empty string using a forEach loop, for every item except index 1:

let names = [
  {
    name: 'first',
    inputType: 'number',
    val: void 5
  },
  {
    name: 'second',
    inputType: 'number',
    val: void 2
  },
  {
    name: 'third',
    inputType: 'text',
    val: void 3
  }
];
console.log('Before', names);

function resetValues()
{
 names.forEach((obj, index)=>
 {
  if(index !== 1)
   {
    obj.val = '';
  } 
 });
}

resetValues();
console.log('After', names);

edited Sep 26, 2019 at 21:10

answered Sep 26, 2019 at 21:04

Lonnie Best

11.6k15 gold badges68 silver badges113 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

How to change custom value in a array using for each loop?

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related