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

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Safari/537.36

Browser: Chrome 138

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

template interpolation

6.3M/s

concat()

3.9M/s

+ operator

3.7M/s

Array.prototype.join

2.9M/s

View exact numbers

Test name	Executions per second
✓ template interpolation	6,332,252 Ops/sec
concat()	3,943,133 Ops/sec
+ operator	3,729,015 Ops/sec
Array.prototype.join	2,887,848 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('')