Сделать левое внешнее соединение в JavaScript ⇐ Jquery

[Гость]

I have an array of objects in javascript (D3) and I need to remove every object of which a certain attribute is present in another array of objects attribute,
i.e. a left outer join

(source: tazindeed.co.uk)

I managed to do it myself with 2 loops but it's quite slow.
And I don't know how to make it faster.

for (var i = 0; i < data1.length; i++) { for (var j = 0; j < data2.length; j++) { if (data2[j].attr3 == data1.attr4) { data2.splice(j,1); } } } data1.length~2k and data2.length~10k

I know this has approximately been asked here but it's been almost 2 years and the solutions use external libraries.
I'm just curious to learn if there is a better method with javascript (or jQuery or D3, which I already use)

Thank you for your help !


Источник: https://stackoverflow.com/questions/288 ... javascript