Run results for: string interpolation vs string concatenation vs [].join()

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Mobile Safari/537.36

Browser: Chrome Mobile 138

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

template interpolation

2.4M/s

concat()

1.6M/s

+ operator

1.6M/s

Array.prototype.join

1.2M/s

View exact numbers

Test name	Executions per second
✓ template interpolation	2,412,955 Ops/sec
concat()	1,636,348 Ops/sec
+ operator	1,578,311 Ops/sec
Array.prototype.join	1,236,979 Ops/sec

HTML Preparation code:

<!--your preparation HTML code goes here-->

Script Preparation code:

let {
    a,
    b,
    c,
    d,
    e,
    f,
    g,
    h
} = new Proxy({}, {
    // lazy
    get(t, p) {
        let a = {
            __proto__: null,
            toString() {
                return p
            }
        }
        a[Symbol.toPrimitive] = a.valueOf = a.toString
        return a
    }
})

Tests:

+ operator
a+b+c+d+e+f+g+h
concat()
''.concat(a,b,c,d,e,f,g,h)
template interpolation
;`${a}${b}${c}${d}${e}${f}${g}${h}`
Array.prototype.join
;[a,b,c,d,e,f,g,h].join('')