ES6: इसके गुणों में से एक ने एक सरणी में एक वस्तु का पता लगाएं

Question

मैं कैसे ES6 में यह करने के लिए यह पता लगाने की कोशिश कर रहा हूँ ...

मैं वस्तुओं की इस सरणी है ..

const originalData=[ 
{"investor": "Sue", "value": 5, "investment": "stocks"}, 
{"investor": "Rob", "value": 15, "investment": "options"}, 
{"investor": "Sue", "value": 25, "investment": "savings"}, 
{"investor": "Rob", "value": 15, "investment": "savings"}, 
{"investor": "Sue", "value": 2, "investment": "stocks"}, 
{"investor": "Liz", "value": 85, "investment": "options"}, 
{"investor": "Liz", "value": 16, "investment": "options"} 
]; 

..और वस्तुओं, जहां मैं अपने निवेश प्रकार (शेयर, विकल्प, बचत) के प्रत्येक व्यक्ति के कुल मूल्य जोड़ना चाहते हैं की इस नई सरणी ..

const newData = [ 
{"investor":"Sue", "stocks": 0, "options": 0, "savings": 0}, 
{"investor":"Rob", "stocks": 0, "options": 0, "savings": 0}, 
{"investor":"Liz", "stocks": 0, "options": 0, "savings": 0} 
]; 

मैं पाश originalData के माध्यम से और "वर्तमान में से प्रत्येक संपत्ति को बचाने वस्तु "एक चलो ..

for (let obj of originalData) { 
    let currinvestor = obj.investor; 
    let currinvestment = obj.investment; 
    let currvalue = obj.value; 

    ..but here I want to find the obect in newData that has the property = currinvestor (for the "investor" key) 
    ...then add that investment type's (currinvestment) value (currvalue) 
} 

Answer 1

newData.find(x => x.investor === investor) 

और सारी कोड:

const originalData = [ 
 
    { "investor": "Sue", "value": 5, "investment": "stocks" }, 
 
    { "investor": "Rob", "value": 15, "investment": "options" }, 
 
    { "investor": "Sue", "value": 25, "investment": "savings" }, 
 
    { "investor": "Rob", "value": 15, "investment": "savings" }, 
 
    { "investor": "Sue", "value": 2, "investment": "stocks" }, 
 
    { "investor": "Liz", "value": 85, "investment": "options" }, 
 
    { "investor": "Liz", "value": 16, "investment": "options" }, 
 
]; 
 

 
const newData = [ 
 
    { "investor": "Sue", "stocks": 0, "options": 0, "savings": 0 }, 
 
    { "investor": "Rob", "stocks": 0, "options": 0, "savings": 0 }, 
 
    { "investor": "Liz", "stocks": 0, "options": 0, "savings": 0 }, 
 
]; 
 

 
for (let {investor, value, investment} of originalData) { 
 
    newData.find(x => x.investor === investor)[investment] += value; 
 
} 
 

 
console.log(newData);

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