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I am developer from India currently based in Berlin, Germany.
I am very interested in Design, though I don't design 😉 I take care of it while making my apps.
Photography, videography and having random conversation over beer are my activities of spare time. Timelapses and hyperlapses make me wonder all the time 😊
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Today's npm package is memoizerific
Many times in our JavaScript functions, we need to do some heavy lifting; like sorting 100s of tuples, formatting strings inside objects etc.
And if there operations are similar but executed very often, it is good bet to use Memoization for function.
Memoization is a technique where you sore the pair of function arguments and its output so that any subsequent call wont need the Function execution again.
For example: For a very simple function (x, y) => (x*x + y), every call to this function would need to be executed. If we memoize the function, we would keep the parameter and output map as:
2,3 = 7 // new call
3,4 = 12 // new call
2,3 = 7 // memoized call
3,4 = 12 // memoized call
And to ease the process, we have our package of the day memoizerific
This package uses javascript's Map function internally to store the pair of parameters and output.
Let's see how to use it:
const memoizerific = require('memoizerific');
const mathEquation = (x, y) => (x*x + y);
// 50 is the number of maximum memoized calls to store
const memoizedMathEquation = memoizerific(50)(mathEquation);
memoizedMathEquation(2, 3) // new call
memoizedMathEquation(3, 4) // new call
memoizedMathEquation(2, 3) // memoized call
memoizedMathEquation(3, 4) // memoized call
Stay tuned for tomorrow's package of the Day.