freeCodeCamp/constructing-strings-with-variables.md at 4a74567986d8de748f954e8957adc7613e85193f

Oliver Eyton-Williams 4a74567986 fix: remove title from Chinese chals

2020-10-06 23:10:08 +05:30

1.9 KiB

Raw Blame History

id, challengeType, videoUrl, forumTopicId, localeTitle

id	challengeType	videoUrl	forumTopicId	localeTitle
56533eb9ac21ba0edf2244b9	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 "和" 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!";

1.9 KiB Raw Blame History