CODEWITHSUNDEEP
angularjsangularsyntaxsemanticsstring-interpolation
altgov3en
altgov3en

Reputation: 1206

Why double curly braces in Angular/JS are called interpolation?

After more than a year of working with Angular/JS, I still don't have an intuitive understanding of what is interpolation (e.g. {{1+4}} ). What is the origin of the of the term (in Angular/JS context) and does it have anything in common with the mathematical term?

Upvotes: 0

Views: 1224

Answers (2)

JCDeen
JCDeen

Reputation: 139

I was puzzled by the same thing, having only recently begun learning Angular. In my training from college, "interpolation" was a strictly mathematical term. This definition makes slightly more sense for me: "Another way of describing it is the act of inserting or interjecting an intermediate value between two other values."

Upvotes: 0

Aleksey Solovey
Aleksey Solovey

Reputation: 4191

"Interpolation - the insertion of something of a different nature into something else".

It's a term used for embedding expressions into template literal, which work as placeholders.

In JavaScript you can have the same concept with string interpolation:

var a = 1;
var b = 4;
console.log(`Interpolated result is: ${a+b}`); // note: the quotes ``

Upvotes: 3

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