Data commit

Task/String-length/JavaScript/string-length-1.js

@@ -0,0 +1,2 @@
+var s = "Hello, world!";
+var byteCount = s.length * 2; // 26

Task/String-length/JavaScript/string-length-2.js

@@ -0,0 +1,5 @@
+a = '👩‍❤️‍👩'
+Buffer.byteLength(a, 'utf16le'); // 16
+Buffer.byteLength(a, 'utf8'); // 20
+Buffer.byteLength(s, 'utf16le'); // 26
+Buffer.byteLength(s, 'utf8'); // 13

Task/String-length/JavaScript/string-length-3.js

@@ -0,0 +1,2 @@
+(new TextEncoder().encode(a)).length; // 20
+(new TextEncoder().encode(s)).length; // 13

Task/String-length/JavaScript/string-length-4.js

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+var str1 = "Hello, world!";
+var len1 = str1.length; // 13
+
+var str2 = "\uD834\uDD2A"; // U+1D12A represented by a UTF-16 surrogate pair
+var len2 = str2.length; // 2

Task/String-length/JavaScript/string-length-5.js

@@ -0,0 +1 @@
+[...str2].length // 1

Task/String-length/JavaScript/string-length-6.js

@@ -0,0 +1 @@
+[...new Intl.Segmenter().segment(a)].length; // 1

Task/String-length/JavaScript/string-length-7.js

@@ -0,0 +1,21 @@
+let
+  str='AöЖ€𝄞'
+ ,countofcodeunits=str.length // 6
+ ,cparr=[...str],
+ ,countofcodepoints=cparr.length; // 5
+{ let
+    count=0
+  for(let codepoint of str)
+    count++
+  countofcodepoints=count // 5
+}
+{ let
+    count=0,
+    it=str[Symbol.iterator]()
+  while(!it.next().done)
+    count++
+  countofcodepoints=count // 5
+}
+{ cparr=Array.from(str)
+  countofcodepoints=cparr.length // 5
+}