82f2b76e25
We now use webpack instead of SystemJS, effectively bundling modules into one file (plus commons chunks) for every entry point. This results in a much smaller extension size (almost half). Furthermore we use yarn/npm even for extension run-time dependencies. This relieves us from manually vendoring and building dependencies. It's also easier to understand for new developers familiar with node.
34 lines
1.1 KiB
JavaScript
34 lines
1.1 KiB
JavaScript
var toInteger = require('./toInteger'),
|
|
toNumber = require('./toNumber'),
|
|
toString = require('./toString');
|
|
|
|
/* Built-in method references for those with the same name as other `lodash` methods. */
|
|
var nativeMin = Math.min;
|
|
|
|
/**
|
|
* Creates a function like `_.round`.
|
|
*
|
|
* @private
|
|
* @param {string} methodName The name of the `Math` method to use when rounding.
|
|
* @returns {Function} Returns the new round function.
|
|
*/
|
|
function createRound(methodName) {
|
|
var func = Math[methodName];
|
|
return function(number, precision) {
|
|
number = toNumber(number);
|
|
precision = precision == null ? 0 : nativeMin(toInteger(precision), 292);
|
|
if (precision) {
|
|
// Shift with exponential notation to avoid floating-point issues.
|
|
// See [MDN](https://mdn.io/round#Examples) for more details.
|
|
var pair = (toString(number) + 'e').split('e'),
|
|
value = func(pair[0] + 'e' + (+pair[1] + precision));
|
|
|
|
pair = (toString(value) + 'e').split('e');
|
|
return +(pair[0] + 'e' + (+pair[1] - precision));
|
|
}
|
|
return func(number);
|
|
};
|
|
}
|
|
|
|
module.exports = createRound;
|