object-lib - npm Package Compare versions

Comparing version 2.0.4 to 2.1.0

lib/core/align.js

@@ -5,2 +5,4 @@ "use strict";
 
+const last = require('../util/last');
+
 const align = (target, ref) => {
@@ -23,6 +25,6 @@ const keysTarget = Object.keys(target);
   }) => {
-    const last = context[context.length - 1];
+    const ref = last(context);
 
-    if (last instanceof Object) {
-      context.push(property === undefined ? last : last[property]);
+    if (ref instanceof Object) {
+      context.push(property === undefined ? ref : ref[property]);
       return false;
@@ -38,6 +40,6 @@ }
   }) => {
-    const last = context.pop();
+    const ref = context.pop();
 
-    if (last instanceof Object && value instanceof Object) {
-      align(last, value);
+    if (ref instanceof Object && value instanceof Object) {
+      align(ref, value);
     }
@@ -44,0 +46,0 @@ }

lib/core/contains.js

@@ -5,2 +5,4 @@ "use strict";
 
+const last = require('../util/last');
+
 const scanner = objectScan(['**'], {
@@ -19,5 +21,5 @@ rtn: 'context',
     } = context;
-    const last = stack[stack.length - 1];
+    const ref = last(stack);
 
-    if (isMatch && !(property in last)) {
+    if (isMatch && !(property in ref)) {
       context.result = false;
@@ -27,3 +29,3 @@ return true;
 
-    const current = isMatch ? last[property] : last;
+    const current = isMatch ? ref[property] : ref;
 
@@ -30,0 +32,0 @@ if (isLeaf) {

lib/core/merge.js

@@ -7,12 +7,6 @@ "use strict";
 
-const last = arr => arr[arr.length - 1];
+const last = require('../util/last');
 
-const mkChild = ref => {
-  if (!(ref instanceof Object)) {
-    return ref;
-  }
+const mkChild = require('../util/mk-child');
 
-  return Array.isArray(ref) ? [] : {};
-};
-
 const populate = (obj, key, fn) => {
@@ -49,6 +43,6 @@ if (!(key in obj)) {
       } = context;
-      const current = last(stack);
+      const ref = last(stack);
 
       if (!isMatch) {
-        if (incompatible(current, value)) {
+        if (incompatible(ref, value)) {
           stack[0] = mkChild(value);
@@ -60,3 +54,3 @@ }
 
-      if (!(current instanceof Object)) {
+      if (!(ref instanceof Object)) {
         stack.push(null);
@@ -66,8 +60,8 @@ return true;
 
-      if (!Array.isArray(current)) {
-        if (!(property in current) || incompatible(current[property], value)) {
-          current[property] = mkChild(value);
+      if (!Array.isArray(ref)) {
+        if (!(property in ref) || incompatible(ref[property], value)) {
+          ref[property] = mkChild(value);
         }
 
-        stack.push(current[property]);
+        stack.push(ref[property]);
         return false;
@@ -80,3 +74,3 @@ }
       if (groupBy === null) {
-        current.push(value);
+        ref.push(value);
         stack.push(null);
@@ -91,3 +85,3 @@ return true;
       if (populate(groups[groupId], groupEntryId, () => mkChild(value))) {
-        current.push(groups[groupId][groupEntryId]);
+        ref.push(groups[groupId][groupEntryId]);
       }
@@ -94,0 +88,0 @@

lib/index.js

@@ -5,2 +5,4 @@ "use strict";
 
+const clone = require('./core/clone');
+
 const contains = require('./core/contains');
@@ -12,4 +14,5 @@
   align,
+  clone,
   contains,
   Merge
 };

package.json

 {
   "name": "object-lib",
-  "version": "2.0.4",
+  "version": "2.1.0",
   "main": "lib/index.js",
@@ -29,2 +29,3 @@ "repository": {
     "lodash.clonedeep": "4.5.0",
+    "lodash.samplesize": "4.2.0",
     "node-tdd": "2.19.1",
@@ -31,0 +32,0 @@ "nyc": "15.1.0",

README.md

@@ -36,2 +36,28 @@ # object-lib
 
+### clone(obj: Object[], needles: Array<String> = [])
+
+Deep clone object.
+
+Fields targeted by passed needles are created as a reference and not cloned.
+
+Fields targeted by excluded needles are removed entirely from the result.
+
+Needles are declared using the [object-scan](https://github.com/blackflux/object-scan) syntax.
+
+_Example:_
+<!-- eslint-disable import/no-unresolved,no-console -->
+```js
+const { clone } = require('object-lib');
+
+const data = { a: {}, b: {}, c: {} };
+const cloned = clone(data, ['b', '!c']);
+
+console.log(cloned);
+// => { a: {}, b: {} }
+console.log(cloned.a !== data.a);
+// => true
+console.log(cloned.b === data.b);
+// => true
+```
+
 ### contains(tree: Object, subtree: Object)
@@ -38,0 +64,0 @@

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Fixed alerts

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Improved metrics

Total package byte prevSize

13777

increased by15.5%

Number of package files

10

increased by42.86%

Lines of code

233

increased by22.63%

Number of lines in readme file

113

increased by29.89%

Worsened metrics

Dev dependency count

21

increased by5%

No dependency changes