Merge pull request #22 from xingorg1/develop

Develop
xingorg1 · Jul 5, 2021 · bdef7db · bdef7db
2 parents 9467628 + 821c965
commit bdef7db
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Showing 19 changed files with 6,188 additions and 109 deletions.
diff --git a/ProfessionalJavaScriptForWebDevelopers/06/02/concat.js b/ProfessionalJavaScriptForWebDevelopers/06/02/concat.js
@@ -0,0 +1,7 @@
+let array1 = [1]
+console.log(array1.concat(2)); // [ 1, 2 ]
+console.log(array1.concat(3,4, [5])); // [ 1, 3, 4, 5 ]
+console.log(array1.concat([6, 7])); // [ 1, 6, 7 ]
+console.log(array1.concat([8], [9, 10])); // [ 1, 8, 9, 10 ]
+
+console.log(array1.concat(2).concat(3,4,[5]).concat([6, 7]).concat([8], [9, 10])) // [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
diff --git a/ProfessionalJavaScriptForWebDevelopers/06/02/valueof.html b/ProfessionalJavaScriptForWebDevelopers/06/02/valueof.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta http-equiv="X-UA-Compatible" content="IE=edge">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>6.2.7 转换方法-valueOf</title>
+</head>
+<body>
+<script>
+Array.prototype.valueOf = function () {
+  return this.map((item) => {
+    return item + '石头姐'
+  })
+}
+let array1 = [1, 2]
+console.log(array1.valueOf())
+</script>
+</body>
+</html>
diff --git a/ProfessionalJavaScriptForWebDevelopers/06/02/valueof.js b/ProfessionalJavaScriptForWebDevelopers/06/02/valueof.js
@@ -0,0 +1,9 @@
+let array1 = [1, 2]
+console.log(array1.valueOf()) // [1, 2]
+Array.prototype.valueOf = function () {
+  return this.map((item) => {
+    return item + '石头姐'
+  })
+}
+console.log(array1.valueOf()) // [ '1石头姐', '2石头姐' ]
+