Shallow-equal-object NPM

shallow-equal-object

Shallow equality check for objects.

Feature

Custom equal function
Debug mode
- Why it is not equal?

Install

Install with npm:

npm install shallow-equal-object

Usage

const { shallowEqual } = require("shallow-equal-object");
shallowEqual({ a: 1, b: 2 }, { a: 1, b: 2 }); // => true
shallowEqual({ a: 1, b: 2 }, { a: 1, b: 42 }); // => false
shallowEqual({ a: 1, b: 2 }, { }); // => false

Options

You can pass option object as 3rd arguments.

`customEqual: (a:any, b:any) => boolean`

assert.ok(shallowEqual(base, { a: 1, b: 2 }, {
    customEqual: (a, b) => {
        return typeof a === "number" && typeof b === "number";
    }
}));
assert.equal(shallowEqual({ a: "string" }, { a: "string" }, {
    customEqual: (a, b) => {
        return typeof a === "number" && typeof b === "number";
    }
}), false);

`debug: boolean`

Enable debug mode if { debug: true }

Debug mode show helpful log that why that result is false.

it("objectA is not object", () => {
    shallowEqual(null, {}, {
        debug: true,
        console: consoleMock
    });
    assert.strictEqual(logCalls[0], "objectA is not object.");
});
it("objectB is not object", () => {
    shallowEqual({}, null, {
        debug: true,
        console: consoleMock
    });
    assert.strictEqual(logCalls[0], "objectB is not object.");
});
it("object key length is not same", () => {
    shallowEqual({}, { a: 1 }, {
        debug: true,
        console: consoleMock
    });
    assert.strictEqual(logCalls[0], "object key length is not same");
});
it("object value is not equal", () => {
    shallowEqual({ a: 1 }, { a: 2 }, {
        debug: true,
        console: consoleMock
    });
    assert.strictEqual(logCalls[0], "key:a is not equals between A and B.");
});

You can pass console object to { debug: true, console: ConsoleAPI }