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(Optional) operator overloading for major arithmetic operators. #263

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(Optional) operator overloading for major arithmetic operators. #263

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19 changes: 19 additions & 0 deletions decimal.js
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Original file line number Diff line number Diff line change
Expand Up @@ -469,6 +469,8 @@
return divide(this, new this.constructor(y));
};

P[Symbol.for('/')] = P.div;


/*
* Return a new Decimal whose value is the integer part of dividing the value of this Decimal
Expand All @@ -490,6 +492,8 @@
return this.cmp(y) === 0;
};

P[Symbol.for('==')] = P.eq;


/*
* Return a new Decimal whose value is the value of this Decimal rounded to a whole number in the
Expand All @@ -510,6 +514,7 @@
return this.cmp(y) > 0;
};

P[Symbol.for('>')] = P.gt;

/*
* Return true if the value of this Decimal is greater than or equal to the value of `y`,
Expand All @@ -521,6 +526,7 @@
return k == 1 || k === 0;
};

P[Symbol.for('>=')] = P.gte;

/*
* Return a new Decimal whose value is the hyperbolic cosine of the value in radians of this
Expand Down Expand Up @@ -1088,6 +1094,8 @@
return this.cmp(y) < 0;
};

P[Symbol.for('<')] = P.lt;


/*
* Return true if the value of this Decimal is less than or equal to `y`, otherwise return false.
Expand All @@ -1097,6 +1105,7 @@
return this.cmp(y) < 1;
};

P[Symbol.for('<=')] = P.lte;

/*
* Return the logarithm of the value of this Decimal to the specified base, rounded to `precision`
Expand Down Expand Up @@ -1410,6 +1419,8 @@
return external ? finalise(y, pr, rm) : y;
};

P[Symbol.for('-')] = P.sub;


/*
* n % 0 = N
Expand Down Expand Up @@ -1470,6 +1481,8 @@
return x.minus(q);
};

P[Symbol.for('%')] = P.mod;


/*
* Return a new Decimal whose value is the natural exponential of the value of this Decimal,
Expand Down Expand Up @@ -1637,6 +1650,8 @@
return external ? finalise(y, pr, rm) : y;
};

P[Symbol.for('+')] = P.add;


/*
* Return the number of significant digits of the value of this Decimal.
Expand Down Expand Up @@ -1936,6 +1951,8 @@
return external ? finalise(y, Ctor.precision, Ctor.rounding) : y;
};

P[Symbol.for('*')] = P.mul;


/*
* Return a string representing the value of this Decimal in base 2, round to `sd` significant
Expand Down Expand Up @@ -2364,6 +2381,8 @@
return finalise(r, pr, rm);
};

P[Symbol.for('**')] = P.pow;


/*
* Return a string representing the value of this Decimal rounded to `sd` significant digits
Expand Down