freeCodeCamp/curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/basic-javascript/comparison-with-the-less-than-or-equal-to-operator.chinese.md

id, title, challengeType, videoUrl, localeTitle

id	title	challengeType	videoUrl	localeTitle
56533eb9ac21ba0edf2244d7	Comparison with the Less Than Or Equal To Operator	1		与小于或等于运算符的比较

Description

less than or equal to运算符（ <= ）比较两个数字的值。如果左边的数字小于或等于右边的数字，则返回true 。如果左侧的数字大于右侧的数字，则返回false 。与等于运算符一样， less than or equal to转换数据类型。 例子

4 <= 5 //是的
'7'<= 7 //是的
5 <= 5 //是的
3 <= 2 //假
'8'<= 4 //假

Instructions

将less than or equal to运算符添加到指示的行，以便返回语句有意义。

Tests

tests:
  - text: <code>testLessOrEqual(0)</code>应该返回“小于或等于12”
    testString: 'assert(testLessOrEqual(0) === "Smaller Than or Equal to 12", "<code>testLessOrEqual(0)</code> should return "Smaller Than or Equal to 12"");'
  - text: <code>testLessOrEqual(11)</code>应返回“小于或等于12”
    testString: 'assert(testLessOrEqual(11) === "Smaller Than or Equal to 12", "<code>testLessOrEqual(11)</code> should return "Smaller Than or Equal to 12"");'
  - text: <code>testLessOrEqual(12)</code>应返回“小于或等于12”
    testString: 'assert(testLessOrEqual(12) === "Smaller Than or Equal to 12", "<code>testLessOrEqual(12)</code> should return "Smaller Than or Equal to 12"");'
  - text: <code>testLessOrEqual(23)</code>应返回“小于或等于24”
    testString: 'assert(testLessOrEqual(23) === "Smaller Than or Equal to 24", "<code>testLessOrEqual(23)</code> should return "Smaller Than or Equal to 24"");'
  - text: <code>testLessOrEqual(24)</code>应返回“小于或等于24”
    testString: 'assert(testLessOrEqual(24) === "Smaller Than or Equal to 24", "<code>testLessOrEqual(24)</code> should return "Smaller Than or Equal to 24"");'
  - text: <code>testLessOrEqual(25)</code>应该返回“超过24”
    testString: 'assert(testLessOrEqual(25) === "More Than 24", "<code>testLessOrEqual(25)</code> should return "More Than 24"");'
  - text: <code>testLessOrEqual(55)</code>应该返回“超过24”
    testString: 'assert(testLessOrEqual(55) === "More Than 24", "<code>testLessOrEqual(55)</code> should return "More Than 24"");'
  - text: 你应该至少使用<code>&lt;=</code>运算符两次
    testString: 'assert(code.match(/val\s*<=\s*("|")*\d+("|")*/g).length > 1, "You should use the <code>&lt;=</code> operator at least twice");'

Challenge Seed

function testLessOrEqual(val) {
  if (val) {  // Change this line
    return "Smaller Than or Equal to 12";
  }

  if (val) {  // Change this line
    return "Smaller Than or Equal to 24";
  }

  return "More Than 24";
}

// Change this value to test
testLessOrEqual(10);

Solution

// solution required