大家好，我开始学习 javascript，我分离了一些我设法做的事情：
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let school = "javascript school";
let fullpackage = "js pro";
let projects = 4;
let awesome = false;
console.log(school, fullpackage, projects, awesome);
下面的用于显示类型：
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let nome;
nome = "eva"
console.log(typeof(nome)); // string
nome = 123
console.log(typeof(nome)); // number
nome = {}
console.log(typeof(nome)); // object
字符串大小：
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let s1 = "melancia";
console.log("length de s1 = " + s1.length);
访问每个角色：
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let s1 = "abacaxi";
console.log(s1[0], s1[1], s1[2], s1[3], s1[4], s1[5], s1[6]);
将所有内容都用大写字母：
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let s1 = "melancia";
console.log(s1.touppercase());
删除字符串开头的空格：
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let s1 = " melancia";
console.log(s1.trimstart());
替换单词：
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let s1 = "melancia";
console.log(s1.replace("melancia", "melão"));
将字符串拆分为子字符串：
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let s1 = "melancia é incrível";
console.log(s1.split(" "));
在空格中添加破折号：
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let s1 = "melancia é incrível";
console.log(s1.split(" ").join("-"));
检查句子是否包含某些内容：
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let s1 = "Melancia é incrível";
console.log(s1.includes("Mel"));
就是这样，我知道这很简单，但我认为这个字符串操作很酷:)