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big.js: add aliases .add, .mul, .sub (#24708)

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Yoyo Zhou 2018-04-04 06:58:01 -07:00 committed by Steve Ognibene
parent 02ff115ce9
commit f87445077b
3 changed files with 24 additions and 0 deletions
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18
types/big.js/index.d.ts vendored
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@ -102,6 +102,12 @@ export interface BigConstructor {
export interface Big {
/** Returns a Big number whose value is the absolute value, i.e. the magnitude, of this Big number. */
abs(): Big;
/**
* Returns a Big number whose value is the value of this Big number plus n - alias for .plus().
*
* @throws `NaN` if n is invalid.
*/
add(n: BigSource): Big;
/**
* Compare the values.
*
@ -162,6 +168,12 @@ export interface Big {
* @throws `NaN` if n is negative or otherwise invalid.
*/
mod(n: BigSource): Big;
/**
* Returns a Big number whose value is the value of this Big number times n - alias for .times().
*
* @throws `NaN` if n is invalid.
*/
mul(n: BigSource): Big;
/**
* Returns a Big number whose value is the value of this Big number plus n.
*
@ -196,6 +208,12 @@ export interface Big {
* @throws `NaN` if this Big number is negative.
*/
sqrt(): Big;
/**
* Returns a Big number whose value is the value of this Big number minus n - alias for .minus().
*
* @throws `NaN` if n is invalid.
*/
sub(n: BigSource): Big;
/**
* Returns a Big number whose value is the value of this Big number times n.
*

3
types/big.js/test/big.js-global-tests.ts
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@ -86,6 +86,7 @@ function minusTests() {
0.3 - 0.1; // 0.19999999999999998
const x = new Big(0.3);
x.minus(0.1); // '0.2'
x.sub(0.1); // '0.2'
}
function modTests() {
@ -99,6 +100,7 @@ function plusTests() {
const x = new Big(0.1);
const y = x.plus(0.2); // '0.3'
Big(0.7).plus(x).plus(y); // '1'
Big(0.7).add(x).add(y); // '1'
}
function powTests() {
@ -138,6 +140,7 @@ function timesTests() {
const x = new Big(0.6);
const y = x.times(3); // '1.8'
Big('7e+500').times(y); // '1.26e+501'
Big('7e+500').mul(y); // '1.26e+501'
}
function toExponentialTests() {

3
types/big.js/test/big.js-module-tests.ts
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@ -88,6 +88,7 @@ function minusTests() {
0.3 - 0.1; // 0.19999999999999998
const x = new Big(0.3);
x.minus(0.1); // '0.2'
x.sub(0.1); // '0.2'
}
function modTests() {
@ -101,6 +102,7 @@ function plusTests() {
const x = new Big(0.1);
const y = x.plus(0.2); // '0.3'
Big(0.7).plus(x).plus(y); // '1'
Big(0.7).add(x).add(y); // '1'
}
function powTests() {
@ -140,6 +142,7 @@ function timesTests() {
const x = new Big(0.6);
const y = x.times(3); // '1.8'
Big('7e+500').times(y); // '1.26e+501'
Big('7e+500').mul(y); // '1.26e+501'
}
function toExponentialTests() {