freeze-class
v4.0.11
Published
class freezer
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##About: Freeze a class and its prototype.
###Note: this module is deprecated, please use the object-based module subzero
##install:
npm install freeze-class
##usage:
'use strict';
const freezeClass = require( 'freeze-class' );
class C {
static f() { return 69; }
f() { return 22; }
}
freezeClass( C );
/*
the following statements will now return true:
*/
// Object.isFrozen( C );
// Object.isFrozen( C.prototype );
/*
and the following statements will now throw TypeErrors in strict mode:
*/
// C.g = function() { return 42 };
// C.f = function() { return 42 };
// delete C.f;
// C.constant = 42;
// C.prototype.g = function() { return 42 };
// C.prototype.f = function() { return 42 };
// delete C.prototype.f;
// C.prototype.constant = 42;
Deep freeze a class in 'deep' mode. This will not freeze any classes within the class. It works by recursively freezing anything of type "object"
.
'use strict';
const freezeClass = require( 'freeze-class' );
class C {}
class InnerClass {}
InnerClass.x = {
y: {}
};
C.a = {
b: {
c: {
d: {
InnerClass
}
}
}
};
C.prototype.x = {
y: {
z: {}
},
w: {}
};
freezeClass( C, 'deep' );
/*
the following statements will now return true:
*/
// Object.isFrozen( C );
// Object.isFrozen( C.a );
// Object.isFrozen( C.a.b );
// Object.isFrozen( C.a.b.c );
// Object.isFrozen( C.a.b.c.d );
// Object.isFrozen( C.prototype );
// Object.isFrozen( C.prototype.x );
// Object.isFrozen( C.prototype.x.y );
// Object.isFrozen( C.prototype.x.y.z );
// Object.isFrozen( C.prototype.x.w );
// !Object.isFrozen( InnerClass );
// !Object.isFrozen( InnerClass.x );
// !Object.isFrozen( InnerClass.x.y );
❄️🎅🏿🎅🏽🎅🏾🎅🏼⛄️🎿🗻🏂
Deep freeze an object in 'deep' mode. This will not freeze any classes within the object. It works by recursively freezing anything of type "object"
.
'use strict';
const freezeClass = require( 'freeze-class' );
const o = {};
class InnerClass {}
InnerClass.x = {
y: {}
};
o.a = {
b: {
c: {
d: {
InnerClass
}
}
}
};
o.x = {
y: {
z: {}
},
w: {}
};
freezeClass( o, 'deep' );
/*
the following statements will now return true:
*/
// Object.isFrozen( o );
// Object.isFrozen( o.a );
// Object.isFrozen( o.a.b );
// Object.isFrozen( o.a.b.c );
// Object.isFrozen( o.a.b.c.d );
// Object.isFrozen( o.x );
// Object.isFrozen( o.x.y );
// Object.isFrozen( o.x.y.z );
// Object.isFrozen( o.x.w );
// !Object.isFrozen( InnerClass );
// !Object.isFrozen( InnerClass.x );
// !Object.isFrozen( InnerClass.x.y );