@hoff97/tensor-js/dist/lib/autograd/ops/unary/absBack.js

PyTorch like deep learning inferrence library

export class AbsBack {
    constructor(input) {
        this.input = input;
    }
    backward(grad) {
        const sign = this.input.value.sign();
        const gradAbs = grad.multiply(sign);
        sign.delete();
        const needed = this.input.backward(gradAbs);
        if (!needed) {
            gradAbs.delete();
        }
    }
    delete() {
        if (!this.input.isLeaf()) {
            this.input.delete();
        }
    }
}
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