1.9 KiB

id, title, challengeType, videoUrl, forumTopicId, localeTitle
id title challengeType videoUrl forumTopicId localeTitle
56533eb9ac21ba0edf2244b9 Constructing Strings with Variables 1 https://scrimba.com/c/cqk8rf4 16805 用变量构造字符串

Description

有时候你需要创建一个类似Mad Libs(填词游戏)风格的字符串。通过使用连接运算符 + ,你可以插入一个或多个变量来组成一个字符串。

Instructions

把你的名字赋值给变量myName,然后把变量myName插入到字符串"My name is "" and I am well!"之间,并把连接后的结果赋值给变量myStr

Tests

tests:
  - text: <code>myName</code>至少要包含三个字符。
    testString: assert(typeof myName !== 'undefined' && myName.length > 2);
  - text: 使用两个<code>+</code>操作符创建包含<code>myName</code>的<code>myStr</code>变量。
    testString: assert(code.match(/["']\s*\+\s*myName\s*\+\s*["']/g).length > 0);

Challenge Seed

// Example
var ourName = "freeCodeCamp";
var ourStr = "Hello, our name is " + ourName + ", how are you?";

// Only change code below this line
var myName;
var myStr;


After Test

(function(){
  var output = [];
  if(typeof myName === 'string') {
    output.push('myName = "' + myName + '"');
  } else {
    output.push('myName is not a string');
  }
  if(typeof myStr === 'string') {
    output.push('myStr = "' + myStr + '"');
  } else {
    output.push('myStr is not a string');
  }
  return output.join('\n');
})();

Solution

var myName = "Bob";
var myStr = "My name is " + myName + " and I am well!";