
- [30天的JavaScript之旅](#30-days-of-javascript)
- [30天的JavaScript之旅](#30天的JavaScript之旅)
- [📔 第一天](#-day-1)
- [简介](#简介)
- [必要条件](#必要条件)
@ -35,7 +35,7 @@
- [打开chrome浏览器控制台](#打开chrome浏览器控制台)
- [在浏览器控制台上写代码](#在浏览器控制台上写代码)
- [Console.log](#consolelog)
- [带有多个参数的Console.log](带有多个参数的console.log)
- [带有多个参数的Console.log](#带有多个参数的consolelog)
- [注释](#注释)
- [语法](#语法)
- [运算](#运算)
@ -54,9 +54,9 @@
- [Undefined](#undefined)
- [Null](#null)
- [检测数据类型](#检测数据类型)
- [Comments Again](#comments-again)
- [Variables](#variables)
- [💻 Day 1: Exercises](#-day-1-exercises)
- [再次强调注释](#再次强调注释)
- [变量](#变量)
- [💻 Day 1: 练习](#-day-1-练习)
# 📔 第一天
@ -207,7 +207,6 @@ console.log('Hello, World!')
console.log('Hello, World!')
```
So far, we saw how to display text using the _console.log()_. If we are printing text or string using _console.log()_, the text has to be inside the single quotes, double quotes, or a backtick quotes.
The first and second variables on the list follows the camelCase convention of declaring in JavaScrip. In this material, we will use camelCase variables.
@ -539,22 +538,23 @@ Example of invalid variables:
num_#_1
```
Let us declare variables with different data types. To declare a variable, we need to use _let_ or _const_ keyword before the variable name. Following the variable name, we write an equal sign (assignment operator), and a value(assigned data).