Created
September 16, 2019 21:28
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JavaScript Array Filter to get Indices
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| const cars = [ | |
| {make: "ford", model: "mustang"}, | |
| {make: "toyota", model: "camry"}, | |
| {make: "ford", model: "fiesta"}, | |
| {make: "chevrolet", model: "volt"}, | |
| {make: "ford", model: "escape"}, | |
| {make: "chrysler", model: "pacifica"}, | |
| ] | |
| const fordCarIndices = cars.reduce((fordCarIndices, field, index) => { | |
| if (field.make === "ford") { | |
| fordCarIndices.push(index) | |
| } | |
| return fordCarIndices | |
| }, []) | |
| console.log(fordCarIndices) | |
| // Output: [0, 2, 4] |
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