This script will remove all console statements from js file and replace them with 0 (zero number).This script was tested on three.js.min and its working...This is my effort to minimize final output of minified js file even further for CEO purposes... (three.js.min => 617,8 kB new.three.js.min => 580,3 kB)

rm_console_statements.py

'''
This script will remove all console statements from js file and replace them with 0 (zero number).
This script was tested on three.js.min and its working...
This is my effort to minimize final output of minified js file even further for CEO purposes...

three.js.min => 617,8 kB
new.three.js.min => 580,3 kB

Example output:

▶ python3 rm_console_statements.py
Enter input js file: three.min.js
Number of consoles: 424
Removed: console.warn("THREE.MathUtils: .setQuaternionFromProperEuler() encountered an unknown order: "+r)
Removed: console.warn("THREE.Vector2: .add() now only accepts one argument. Use .addVectors( a, b ) instead.")
Removed: console.warn("THREE.Vector2: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.")
Removed: console.warn("THREE.Vector2: offset has been removed from .fromBufferAttribute().")
Removed: console.error("THREE.Matrix3: the constructor no longer reads arguments. use .set() instead.")
Removed: console.warn("THREE.ImageUtils.getDataURL: Image converted to jpg for performance reasons",t)
Removed: console.warn("THREE.Texture: Unable to serialize Texture.")
Removed: console.warn("THREE.Vector4: .add() now only accepts one argument. Use .addVectors( a, b ) instead.")
Removed: console.warn("THREE.Vector4: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.")
Removed: console.warn("THREE.Vector4: offset has been removed from .fromBufferAttribute().")
Removed: console.warn("THREE.Quaternion: Static .slerp() has been deprecated. Use qm.slerpQuaternions( qa, qb, t ) instead.")
Removed: console.warn("THREE.Quaternion: .setFromEuler() encountered an unknown order: "+s)
Removed: console.warn("THREE.Quaternion: .multiply() now only accepts one argument. Use .multiplyQuaternions( a, b ) instead.")
Removed: console.warn("THREE.Vector3: .add() now only accepts one argument. Use .addVectors( a, b ) instead.")
Removed: console.warn("THREE.Vector3: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.")
Removed: console.warn("THREE.Vector3: .multiply() now only accepts one argument. Use .multiplyVectors( a, b ) instead.")
Removed: console.error("THREE.Vector3: .applyEuler() now expects an Euler rotation rather than a Vector3 and order.")
Removed: console.warn("THREE.Vector3: .cross() now only accepts one argument. Use .crossVectors( a, b ) instead.")
Removed: console.warn("THREE.Vector3: offset has been removed from .fromBufferAttribute().")
Removed: console.error("THREE.Matrix4: the constructor no longer reads arguments. use .set() instead.")
Removed: console.error("THREE.Matrix4: .makeRotationFromEuler() now expects a Euler rotation rather than a Vector3 and order.")
Removed: console.warn("THREE.Matrix4: .multiply() now only accepts one argument. Use .multiplyMatrices( a, b ) instead.")
Removed: console.warn("THREE.Matrix4: .makePerspective() has been redefined and has a new signature. Please check the docs.")
Removed: console.warn("THREE.Euler: .setFromRotationMatrix() encountered an unknown order: "+e)
Removed: console.error("THREE.Object3D.add: object can't be added as a child of itself.",t)
Removed: console.error("THREE.Object3D.add: object not an instance of THREE.Object3D.",t)
Removed: console.warn("THREE.Material: '"+e+"' parameter is undefined.")
Removed: console.warn("THREE."+this.type+": .shading has been removed. Use the boolean .flatShading instead.")
Removed: console.warn("THREE."+this.type+": '"+e+"' is not a property of this material.")
Removed: console.warn("THREE.Color: Alpha component of "+t+" will be ignored.")
Removed: console.warn("THREE.Color: Unknown color "+t)
Removed: console.warn("THREE.BufferAttribute.copyColorsArray(): color is undefined",i)
Removed: console.warn("THREE.BufferAttribute.copyVector2sArray(): vector is undefined",i)
Removed: console.warn("THREE.BufferAttribute.copyVector3sArray(): vector is undefined",i)
Removed: console.warn("THREE.BufferAttribute.copyVector4sArray(): vector is undefined",i)

'''
input_js_path = input("Enter input js file: ")


with open(input_js_path) as f:
    text = f.read()
    newText = ''

    print("Number of consoles:", text.count('console.'))

    searchWord = 'console.'

    i=0
    count = 0
    run = True
    removed = 0
    while True:

        while searchWord != text[i:i+len(searchWord)]:
            newText += text[i]
            i+=1

            if i >= len(text):
                run = False
                break

        if not run:
            break

        oklepaj=0
        j=i
        word = ''
        while True:
            if '(' == text[j]:
                oklepaj+=1
            elif ')' == text[j]:
                oklepaj-=1
                if oklepaj == 0:
                    count+=1
                    removed+=len(text[i:j+1])
                    print('Removed:', text[i:j+1])
                    newText+='0'
                    i=j+1
                    break
            j+=1

with open(f'new.{input_js_path}.js', 'w') as f:
    f.write(newText)