baseMatches.js
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var baseIsMatch = require('./baseIsMatch'),
constant = require('../utility/constant'),
isStrictComparable = require('./isStrictComparable'),
keys = require('../object/keys'),
toObject = require('./toObject');
/**
* The base implementation of `_.matches` which does not clone `source`.
*
* @private
* @param {Object} source The object of property values to match.
* @returns {Function} Returns the new function.
*/
function baseMatches(source) {
var props = keys(source),
length = props.length;
if (!length) {
return constant(true);
}
if (length == 1) {
var key = props[0],
value = source[key];
if (isStrictComparable(value)) {
return function(object) {
if (object == null) {
return false;
}
return object[key] === value && (value !== undefined || (key in toObject(object)));
};
}
}
var values = Array(length),
strictCompareFlags = Array(length);
while (length--) {
value = source[props[length]];
values[length] = value;
strictCompareFlags[length] = isStrictComparable(value);
}
return function(object) {
return object != null && baseIsMatch(toObject(object), props, values, strictCompareFlags);
};
}
module.exports = baseMatches;