format array into columns

script.js

function normalizePartLengths(input) {
    const arr = input.trim().replace("[ ", "").replace(" ],", "").split(", ")
    const normalLength = Math.max( ...arr.map( part => part.length ) )
    return "[ " + arr.map( part => {
        const delta = normalLength - part.length
                return part + " ".repeat(delta)
    }).join(", ") + " ],"
}

//const a = normalizePartLengths("[ 1.11, 2.53, 2.86, 3.09, 3.27, 3.42, 3.55, 3.67, 3.78, 3.87, 3.97, 4.05, 4.13, 4.21, 4.29, 4.36, 4.42, 4.49, 4.55, 4.62, 4.68, 4.73, 4.79, 4.84, 4.9 , 4.95, 5.0 , 5.05, 5.1 , 5.15, 5.19, 5.24, 5.28, 5.33, 5.37, 5.42, 5.46, 5.5 , 5.55, 5.59, 5.63, 5.67, 5.71, 5.75, 5.79, 5.83, 5.87, 5.91, 5.95, 5.99, 6.03, 6.07, 6.11, 6.15, 6.19, 6.23, 6.27, 6.3 , 6.34, 6.38, 6.42, 6.46, 6.5 , 6.54, 6.58, 6.62, 6.67, 6.71, 6.75, 6.79, 6.83, 6.88, 6.92, 6.97, 7.01, 7.06, 7.1 , 7.15, 7.2 , 7.25, 7.3 , 7.35, 7.4 , 7.45, 7.51, 7.56, 7.62, 7.69, 7.75, 7.81, 7.89, 7.96, 8.04, 8.12, 8.21, 8.32, 8.43, 8.57, 8.74, 8.98, 9.79 ],")

function normalizePartLengths2(input) {
    const trimmedInput = input.trim().split("\n").map( line => line.trim() ).join("\n")
    const lines = trimmedInput.replace("[ ", "").slice(0, -3).split(" ],\n[ ")

    console.log(lines)

    const normalLength = Math.max( ...lines.flatMap( line => line.split(/\s*,\s*/g) ).map( part => part.length ) )
    console.log(normalLength)
    const normalizedLines = lines.map( line => {
        return line
            .split(/\s*,\s*/g)
            .map( part => part + " ".repeat(normalLength - part.length ) )
            .join(", ")
    })

    return "[ " + normalizedLines.join(" ],\n        [ ") + " ],"
}

console.log(normalizePartLengths2(`
[ 1.0 , 1.1 , 1.2 , 1.29, 1.39, 1.49, 1.59, 1.68, 1.78, 1.88, 1.97, 2.07, 2.17, 2.26, 2.36, 2.46, 2.55, 2.65, 2.74, 2.84, 2.93, 3.03, 3.12, 3.22, 3.31, 3.41, 3.5 , 3.59, 3.69, 3.78, 3.87, 3.97, 4.06, 4.15, 4.25, 4.34, 4.43, 4.52, 4.61, 4.7 , 4.79, 4.89, 4.98, 5.07, 5.16, 5.25, 5.34, 5.43, 5.52, 5.61, 5.7 , 5.79, 5.88, 5.97, 6.06, 6.14, 6.23, 6.32, 6.41, 6.5 , 6.59, 6.67, 6.76, 6.85, 6.93, 7.02, 7.11, 7.2 , 7.29, 7.37, 7.46, 7.55, 7.63, 7.72, 7.8 , 7.89, 7.98, 8.07, 8.15, 8.24, 8.32, 8.41, 8.49, 8.58, 8.66, 8.75, 8.83, 8.92, 9.0 , 9.08, 9.17, 9.25, 9.34, 9.42, 9.5 , 9.59, 9.67, 9.75, 9.83, 9.92, 10.0 ],
        [ 1.11, 2.53, 2.86, 3.09, 3.27, 3.42, 3.55, 3.67, 3.78, 3.87, 3.97, 4.05, 4.13, 4.21, 4.29, 4.36, 4.42, 4.49, 4.55, 4.62, 4.68, 4.73, 4.79, 4.84, 4.9 , 4.95, 5.0 , 5.05, 5.1 , 5.15, 5.19, 5.24, 5.28, 5.33, 5.37, 5.42, 5.46, 5.5 , 5.55, 5.59, 5.63, 5.67, 5.71, 5.75, 5.79, 5.83, 5.87, 5.91, 5.95, 5.99, 6.03, 6.07, 6.11, 6.15, 6.19, 6.23, 6.27, 6.3 , 6.34, 6.38, 6.42, 6.46, 6.5 , 6.54, 6.58, 6.62, 6.67, 6.71, 6.75, 6.79, 6.83, 6.88, 6.92, 6.97, 7.01, 7.06, 7.1 , 7.15, 7.2 , 7.25, 7.3 , 7.35, 7.4 , 7.45, 7.51, 7.56, 7.62, 7.69, 7.75, 7.81, 7.89, 7.96, 8.04, 8.12, 8.21, 8.32, 8.43, 8.57, 8.74, 8.98, 9.79 ],
        [ 1.1, 2.69, 3.08, 3.35, 3.55, 3.73, 3.88, 4.01, 4.13, 4.23, 4.33, 4.43, 4.51, 4.6, 4.67, 4.75, 4.82, 4.88, 4.95, 5.01, 5.07, 5.13, 5.19, 5.24, 5.3, 5.35, 5.4, 5.45, 5.5, 5.54, 5.59, 5.64, 5.68, 5.73, 5.77, 5.81, 5.86, 5.9, 5.94, 5.98, 6.02, 6.06, 6.1, 6.14, 6.18, 6.22, 6.26, 6.3, 6.34, 6.38, 6.42, 6.46, 6.49, 6.53, 6.57, 6.61, 6.65, 6.68, 6.72, 6.76, 6.8, 6.84, 6.87, 6.91, 6.95, 6.99, 7.03, 7.07, 7.11, 7.14, 7.18, 7.22, 7.26, 7.31, 7.35, 7.39, 7.43, 7.48, 7.52, 7.56, 7.61, 7.66, 7.71, 7.75, 7.8, 7.86, 7.91, 7.97, 8.03, 8.09, 8.16, 8.23, 8.3, 8.38, 8.46, 8.56, 8.67, 8.8, 8.95, 9.18, 9.89 ],
        [ 1.13, 2.56, 2.91, 3.17, 3.38, 3.56, 3.72, 3.86, 3.99, 4.12, 4.23, 4.34, 4.44, 4.53, 4.62, 4.71, 4.79, 4.88, 4.95, 5.03, 5.1, 5.17, 5.24, 5.3, 5.37, 5.43, 5.49, 5.54, 5.6, 5.66, 5.71, 5.76, 5.82, 5.87, 5.91, 5.96, 6.01, 6.06, 6.1, 6.15, 6.19, 6.24, 6.28, 6.32, 6.36, 6.4, 6.45, 6.49, 6.53, 6.57, 6.61, 6.64, 6.68, 6.72, 6.76, 6.8, 6.84, 6.88, 6.92, 6.96, 7.0, 7.04, 7.08, 7.12, 7.16, 7.2, 7.24, 7.28, 7.32, 7.37, 7.41, 7.45, 7.5, 7.54, 7.59, 7.64, 7.68, 7.73, 7.78, 7.83, 7.88, 7.93, 7.98, 8.03, 8.09, 8.14, 8.2, 8.26, 8.32, 8.38, 8.44, 8.51, 8.58, 8.65, 8.73, 8.82, 8.91, 9.02, 9.15, 9.31, 9.86 ],
        [ 1.23, 2.65, 3.01, 3.25, 3.45, 3.61, 3.75, 3.88, 4.0, 4.11, 4.21, 4.31, 4.4, 4.48, 4.56, 4.64, 4.72, 4.79, 4.86, 4.93, 4.99, 5.05, 5.11, 5.17, 5.23, 5.29, 5.35, 5.4, 5.46, 5.51, 5.57, 5.62, 5.67, 5.72, 5.77, 5.82, 5.87, 5.92, 5.96, 6.01, 6.06, 6.11, 6.15, 6.2, 6.25, 6.29, 6.34, 6.38, 6.43, 6.47, 6.52, 6.56, 6.6, 6.65, 6.69, 6.74, 6.78, 6.82, 6.87, 6.91, 6.95, 6.99, 7.03, 7.08, 7.12, 7.16, 7.2, 7.24, 7.28, 7.33, 7.37, 7.41, 7.45, 7.5, 7.54, 7.58, 7.63, 7.67, 7.72, 7.76, 7.81, 7.86, 7.9, 7.95, 8.0, 8.06, 8.11, 8.16, 8.22, 8.28, 8.34, 8.4, 8.47, 8.54, 8.62, 8.7, 8.8, 8.91, 9.04, 9.23, 9.86 ],
        [ 1.24, 2.48, 2.76, 2.96, 3.12, 3.25, 3.37, 3.47, 3.57, 3.65, 3.74, 3.82, 3.89, 3.96, 4.03, 4.1, 4.16, 4.22, 4.28, 4.34, 4.4, 4.45, 4.51, 4.56, 4.62, 4.67, 4.72, 4.77, 4.82, 4.87, 4.92, 4.96, 5.01, 5.05, 5.1, 5.15, 5.19, 5.24, 5.29, 5.33, 5.38, 5.42, 5.47, 5.51, 5.56, 5.6, 5.65, 5.69, 5.74, 5.78, 5.83, 5.87, 5.91, 5.96, 6.0, 6.05, 6.09, 6.13, 6.18, 6.22, 6.26, 6.31, 6.35, 6.4, 6.44, 6.49, 6.53, 6.57, 6.62, 6.66, 6.71, 6.76, 6.8, 6.85, 6.89, 6.94, 6.99, 7.04, 7.09, 7.14, 7.19, 7.24, 7.29, 7.35, 7.4, 7.46, 7.52, 7.58, 7.64, 7.71, 7.78, 7.85, 7.93, 8.02, 8.11, 8.2, 8.31, 8.44, 8.6, 8.83, 9.69 ],
        [ 1.24, 2.52, 2.8, 3.0, 3.16, 3.29, 3.41, 3.51, 3.6, 3.69, 3.77, 3.84, 3.91, 3.98, 4.05, 4.11, 4.16, 4.22, 4.28, 4.33, 4.38, 4.43, 4.48, 4.53, 4.58, 4.63, 4.67, 4.72, 4.76, 4.81, 4.85, 4.89, 4.93, 4.98, 5.02, 5.06, 5.1, 5.14, 5.18, 5.22, 5.26, 5.3, 5.33, 5.37, 5.41, 5.45, 5.49, 5.52, 5.56, 5.6, 5.64, 5.68, 5.71, 5.75, 5.79, 5.83, 5.86, 5.9, 5.94, 5.98, 6.02, 6.06, 6.1, 6.13, 6.17, 6.21, 6.25, 6.29, 6.33, 6.38, 6.42, 6.46, 6.5, 6.55, 6.59, 6.63, 6.68, 6.73, 6.77, 6.82, 6.87, 6.92, 6.98, 7.03, 7.08, 7.14, 7.2, 7.26, 7.32, 7.39, 7.46, 7.54, 7.62, 7.71, 7.81, 7.91, 8.04, 8.18, 8.36, 8.62, 9.62 ],
`))