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fengchuanyu 1 week ago
parent
cfc25dbdb3
commit
59ec40a3d0
2 changed files with 66 additions and 0 deletions
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  1. 34 0
      3_JavaScript/练习24_字符串收集.html
  2. 32 0
      3_JavaScript/练习25_字符串拼接.html

+ 34 - 0
3_JavaScript/练习24_字符串收集.html
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+<!DOCTYPE html>
 
+<html lang="en">
 
+<head>
 
+    <meta charset="UTF-8">
 
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
 
+    <title>Document</title>
 
+</head>
 
+<body>
 
+    <script>
 
+        function s(s){
 
+            var arr = ["0","1","2","3","4","5","6","7","8","9"];
 
+            if(arr.includes(s)){
 
+                return true
 
+            }else{
 
+                return false
 
+            }
 
+        }
 
+
 
+        function CollectDigits(str){
 
+            var arr = str.split("");
 
+            var res = arr.filter(function(item){
 
+                if(s(item)){
 
+                    return true;
 
+                }else{
 
+                    return false;
 
+                }
 
+            })
 
+            console.log(res);
 
+        }
 
+
 
+        CollectDigits("1abc23def4")
 
+    </script>
 
+</body>
 
+</html>

+ 32 - 0
3_JavaScript/练习25_字符串拼接.html
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@@ -0,0 +1,32 @@
 
+<!DOCTYPE html>
 
+<html lang="en">
 
+<head>
 
+    <meta charset="UTF-8">
 
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
 
+    <title>Document</title>
 
+</head>
 
+<body>
 
+    <script>
 
+        function Merge(s1,s2){
 
+            var longArr = "";
 
+            var shortArr = "";
 
+            var resStr = "";
 
+            if(s1.length > s2.length){
 
+                longArr = s1;
 
+                shortArr = s2;
 
+            }else{
 
+                longArr = s2;
 
+                shortArr = s1;
 
+            }
 
+            for(var i=0;i< shortArr.length;i++){
 
+                resStr = resStr.concat(longArr.charAt(i),shortArr.charAt(i));
 
+                
+            }
 
+            console.log(resStr+longArr.slice(shortArr.length));
 
+
 
+        }
 
+
 
+        Merge("123456","abcd");
 
+    </script>
 
+</body>
 
+</html>