test('amp-merge', function (t) {
var result;
var obj = {
test: 'test',
beep: 'boop'
};
t.deepEqual(merge(obj, {a: 'b'}), { a: 'b', beep: 'boop', test: 'test' }, 'can merge an object with the attributes of another');
t.deepEqual(obj, { test: 'test', beep: 'boop' }, 'check that obj remains unchanged');
t.equal(merge({a: 'x'}, {a: 'b'}).a, 'b', 'properties in source override destination');
t.equal(merge({x: 'x'}, {a: 'b'}).x, 'x', "properties not in source don't get overridden");
result = merge({x: 'x'}, {a: 'a'}, {b: 'b'});
t.deepEqual(result, {x: 'x', a: 'a', b: 'b'}, 'can merge from multiple source objects');
result = merge({x: 'x'}, {a: 'a', x: 2}, {a: 'b'});
t.deepEqual(result, {x: 2, a: 'b'}, 'merge from multiple source objects last property trumps');
result = merge({}, {a: void 0, b: null});
t.deepEqual(keys(result), ['a', 'b'], 'merge copies undefined values');
var F = function() {};
F.prototype = {a: 'b'};
var subObj = new F();
subObj.c = 'd';
t.deepEqual(merge({}, subObj), {a: 'b', c: 'd'}, 'merge copies all properties from source');
t.deepEqual(merge(null, {a: 1}), { a: 1 }, 'will allow a parameter to be null');
t.deepEqual(merge(undefined, {a: 1}), { a: 1 }, 'will allow a parameter to be null undefined');
t.end();
});
module.exports = function some(obj, func, context) {
if (obj == null) return false;
var keys = obj.length !== +obj.length && objKeys(obj);
var length = (keys || obj).length;
var index = 0;
var currentKey;
func = iteratee(func, context);
for (; index < length; index++) {
currentKey = keys ? keys[index] : index;
if (func(obj[currentKey], currentKey, obj)) return true;
}
return false;
};
module.exports = function map(obj, iteratee, context) {
if (obj == null) return [];
iteratee = createIteratee(iteratee, context, 3);
var keys = obj.length !== +obj.length && objKeys(obj);
var length = (keys || obj).length;
var results = Array(length);
var currentKey;
var index = 0;
for (; index < length; index++) {
currentKey = keys ? keys[index] : index;
results[index] = iteratee(obj[currentKey], currentKey, obj);
}
return results;
};
module.exports = function each(obj, iteratee, context) {
if (obj == null) return obj;
iteratee = createCallback(iteratee, context);
var i, length = obj.length;
if (length === +length) {
for (i = 0; i < length; i++) {
iteratee(obj[i], i, obj);
}
} else {
var keys = objKeys(obj);
for (i = 0, length = keys.length; i < length; i++) {
iteratee(obj[keys[i]], keys[i], obj);
}
}
return obj;
};
var keys = require('amp-keys');
var obj = {
hi: 'there',
oh: 'hello there'
};
keys(obj); //=> ['hi', 'oh']
keys(undefined) //=> []