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Kenneth Thomas
Front End Web Development Techdegree Student 7,891 PointsWhat is the purpose of using push and unshift to add items to an array?
Wouldn't it be easier go to the array and add the items opposed to using varname.push[] and varname.unshift[]?
2 Answers
Ari Misha
19,323 PointsHiya there! Generally programmers are lazy and we dont like repetitive tasks, and we shouldn't, right? Lets just say you've like 15 entries that you need to add to an array. Are you gonna type everything? Or Lets just say you're getting your data from an external API and its in jSON with thousands of entries and deeply nested. Are you still going to type it out? I hope not! Thats why methods like push() and unshift() exist. In real world problems, you're going to have to deal with data from somewhere else like an External API or Data Scraping files or Databases etc. and dealing with data can be a pain in the ass unless you're really good at Algorithms.
~ Ari
Kenneth Thomas
Front End Web Development Techdegree Student 7,891 PointsAwesome thank you