How to fix this issue with delete object from array by title?

Question

I'm trying to delete object from array by title in this situation, but it doesnt work for me. Also, addItem work properly

addItem() {
    console.log(this.item.title + ' ' + this.item.quantity);
    this.ListOfUsedMaterials.push({ title: this.item.title, quantity: this.item.quantity});
    this.item.title = "";
    this.item.quantity = ""; 
}


//delete from array by title
deleteItem() {
    console.log("ID ARTIKLA: ", this.item.title);

    for (var i=0; i < this.ListOfUsedMaterials.length; i++) {
      if (this.ListOfUsedMaterials[i]["title"] == this.item.title) {
        this.ListOfUsedMaterials.splice(i, 1);
      }
    }

}

user4676340 · Accepted Answer · 2019-03-19 10:46:42Z

2

Just use filter :

deleteItemfromArray(title = this.item.title) {
  this.ListOfUsedMaterials = this.ListOfUsedMaterials
    .filter(item => item.title != title);
}

answered Mar 19, 2019 at 10:46

user4676340

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

Comments

shiva · Accepted Answer · 2019-03-19 11:18:04Z

0

you can try like this. we need to iterate loop from the end because here we are deleting the array element, I hope it helps you out.

deleteItem() {
console.log("ID ARTIKLA: ", this.item.title);
var i = 0;
for (i; i < this.ListOfUsedMaterials.length - 1; --i) {
   if (this.ListOfUsedMaterials[i]["title"] == this.item.title) {
      this.ListOfUsedMaterials.splice(i, 1);
    }
  }
}

keep declaration i outside for loop because for loop tries to create new variable for every iteration.

edited Mar 19, 2019 at 11:18

shiva

5,5555 gold badges27 silver badges45 bronze badges

answered Mar 19, 2019 at 10:50

Yash Rami

2,3371 gold badge12 silver badges16 bronze badges

Collectives™ on Stack Overflow

How to fix this issue with delete object from array by title?

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related