20 lines
539 B
JavaScript
20 lines
539 B
JavaScript
|
var eq = require('./eq');
|
||
|
|
|
||
|
|
/**
|
||
|
|
* This function is like `assignValue` except that it doesn't assign
|
||
|
|
* `undefined` values.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @param {Object} object The object to modify.
|
||
|
|
* @param {string} key The key of the property to assign.
|
||
|
|
* @param {*} value The value to assign.
|
||
|
|
*/
|
||
|
|
function assignMergeValue(object, key, value) {
|
||
|
|
if ((value !== undefined && !eq(object[key], value)) ||
|
||
|
|
(typeof key == 'number' && value === undefined && !(key in object))) {
|
||
|
|
object[key] = value;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
module.exports = assignMergeValue;
|