2.6 KiB
2.6 KiB
| id | title | challengeType | videoUrl | localeTitle |
|---|---|---|---|---|
| 587d7db9367417b2b2512ba4 | Match Non-Whitespace Characters | 1 | 匹配非空白字符 |
Description
\s搜索空格，并使用小写s 。您还可以搜索除空格之外的所有内容。使用\S搜索非空格， \S是一个大写的s 。此模式将不匹配空格，回车符，制表符，换页符和换行符。你可以认为它类似于字符类[^ \r\t\f\n\v] 。 让whiteSpace =“空白。到处都是空白！”
让nonSpaceRegex = / \ S / g;
whiteSpace.match（nonSpaceRegex）。长度; //返回32
Instructions
countNonWhiteSpace以在字符串中查找多个非空白字符。 Tests
tests:
- text: 你的正则表达式应该使用全局标志。
testString: 'assert(countNonWhiteSpace.global, "Your regex should use the global flag.");'
- text: 你的正则表达式应该使用速记字符
testString: 'assert(/\\S/.test(countNonWhiteSpace.source), "Your regex should use the shorthand character <code>\S/code> to match all non-whitespace characters.");'
- text: 你的正则表达式应该在<code>"Men are from Mars and women are from Venus."</code>找到35个非空格<code>"Men are from Mars and women are from Venus."</code>
testString: 'assert("Men are from Mars and women are from Venus.".match(countNonWhiteSpace).length == 35, "Your regex should find 35 non-spaces in <code>"Men are from Mars and women are from Venus."</code>");'
- text: '你的正则表达式应该在<code>"Space: the final frontier."</code>找到23个非空格<code>"Space: the final frontier."</code>'
testString: 'assert("Space: the final frontier.".match(countNonWhiteSpace).length == 23, "Your regex should find 23 non-spaces in <code>"Space: the final frontier."</code>");'
- text: 你的正则表达式应该在<code>"MindYourPersonalSpace"</code>找到21个非空格
testString: 'assert("MindYourPersonalSpace".match(countNonWhiteSpace).length == 21, "Your regex should find 21 non-spaces in <code>"MindYourPersonalSpace"</code>");'
Challenge Seed
let sample = "Whitespace is important in separating words";
let countNonWhiteSpace = /change/; // Change this line
let result = sample.match(countNonWhiteSpace);
Solution
// solution required