Remove last item from array

Source: https://stackoverflow.com/questions/19544452/remove-last-item-from-array

Use splice(index,howmany)

arr.splice(-1,1)

Removing Elements Dynamically

Source: https://www.abeautifulsite.net/adding-and-removing-elements-on-the-fly-using-javascript

• function removeElement(elementId) {
• // Removes an element from the document
• var element = document.getElementById(elementId);
• element.parentNode.removeChild(element);
• }

How do I remove an array item in TypeScript?

Source:https://stackoverflow.com/questions/15292278/how-do-i-remove-an-array-item-in-typescript

down vote

With ES6 you can use this code :

removeDocument(doc){
   this.documents.forEach( (item, index) => {
     if(item === doc) this.documents.splice(index,1);
   });
}

FormGroup FormArray - remove only one element object by value

Source: https://stackoverflow.com/questions/46707026/typescript-formgroup-formarray-remove-only-one-element-object-by-value-angul

FormArray class has removeAt which takes the index. If you do not know the index, you can do a workaround:

this.images.removeAt(this.images.value.findIndex(image => image.id === 502))