MySQL

code/ES6/src/01_block_bindings/01_var.js

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+function test(flag) {
+	if (flag) {
+		var value = "blue";
+		console.log(value);
+	} else {
+		console.log(value);
+	}
+	console.log(value);
+}
+
+test(true);
+test(false);
+

code/ES6/src/01_block_bindings/02_let.js

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+function test(flag) {
+	if (flag) {
+		let value = "blue";
+		console.log(value);
+	} else {
+		console.log(value); //value在此处不能访问
+	}
+	console.log(value);	//value在此处不能访问
+}
+
+test(true);
+test(false);
+

code/ES6/src/01_block_bindings/03_the_temporal_dead_zone.js

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+(function test() {
+	console.log(typeof value); // 引用错误
+	let value = "blue";
+	console.log(value);
+})();

code/ES6/src/01_block_bindings/04_no_temporal_dead_zone.js

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+console.log(typeof value);
+(function test() {
+	let value = "blue";
+	console.log(value);
+})();

code/ES6/src/01_block_bindings/05_var_for.js

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+let list = [];
+for (var i = 0; i < 10; i++) {
+	list.push(function () {
+		console.log(i);
+	});
+}
+list.forEach(function (func) {
+	func();
+});

code/ES6/src/01_block_bindings/06_let_for.js

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+let list = [];
+for (let i = 0; i < 10; i++) {
+	list.push(function () {
+		console.log(i);
+	});
+}
+list.forEach(function (func) {
+	func();
+});

code/ES6/src/02_strings_template/01_string_methods.js

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+let msg = "Hello world!";
+console.log(msg.startsWith("Hello")); // true
+console.log(msg.endsWith("!")); // true
+console.log(msg.includes("o")); // true
+console.log(msg.startsWith("o")); // false
+console.log(msg.endsWith("world!")); // true
+console.log(msg.includes("x")); // false
+console.log(msg.startsWith("o", 4)); // true
+console.log(msg.endsWith("o", 8)); // true
+console.log(msg.includes("o", 8)); // false
+
+console.log("x".repeat(3)); // "xxx"
+console.log("hello".repeat(2)); // "hellohello"
+console.log("abc".repeat(4)); // "abcabcabcabc"
+
+'x'.padStart(5, 'ab');  // 'ababx'
+'x'.padStart(4, 'ab');  // 'abax'
+
+'x'.padEnd(5, 'ab');  // 'xabab'
+'x'.padEnd(4, 'ab');  // 'xaba'
+'xxx'.padStart(2, 'ab');  // 'xxx'
+'xxx'.padEnd(2, 'ab');  // 'xxx'
+
+'abc'.padStart(10, '0123456789'); //'0123456abc'
+'x'.padStart(4); // '   x'
+'x'.padEnd(4); // 'x   '

code/ES6/src/02_strings_template/02_template.js

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+// 1.模板字面量
+let name = "Nicholas",
+	message01 = `Hello, ${name}.`;
+console.log(message01); // "Hello, Nicholas."
+
+// 2.支持JS表达式
+let count = 10,
+	price = 0.25,
+	message02 = `${count} items cost $${(count * price).toFixed(2)}.`;
+console.log(message02); // "10 items cost $2.50."
+
+// 3.多行字符串
+let message03 = `Multiline
+string`;
+console.log(message03);      // Hello,
+							 // string
+
+// 4.多行字符串与模板嵌套
+let fullName = "Nicholas",
+	message04 = `Hello, 
+	my name is ${fullName}.`;
+console.log(message04); 	// Hello,
+							// my name is Nicholas.