How do I remove an array item in TypeScript?

Same way as you would in JavaScript.

delete myArray[key];

Note that this sets the element to undefined.

Better to use the Array.prototype.splice function:

const index = myArray.indexOf(key, 0);if (index > -1) {   myArray.splice(index, 1);}

arrays typescript collections

If array is type of objects, then the simplest way is

let foo_object // Item to removethis.foo_objects = this.foo_objects.filter(obj => obj !== foo_object);

arrays typescript collections

With ES6 you can use this code :

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

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