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reg->regexp

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This commit is contained in:
Ilya Kantor 2019-09-06 16:50:41 +03:00
parent 4232a53219
commit 32e20fc97c
35 changed files with 132 additions and 132 deletions
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8
9-regular-expressions/13-regexp-alternation/01-find-programming-language/solution.md
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@ -4,11 +4,11 @@ The first idea can be to list the languages with `|` in-between.
But that doesn't work right:
```js run
let reg = /Java|JavaScript|PHP|C|C\+\+/g;
let regexp = /Java|JavaScript|PHP|C|C\+\+/g;
let str = "Java, JavaScript, PHP, C, C++";
alert( str.match(reg) ); // Java,Java,PHP,C,C
alert( str.match(regexp) ); // Java,Java,PHP,C,C
```
The regular expression engine looks for alternations one-by-one. That is: first it checks if we have `match:Java`, otherwise -- looks for `match:JavaScript` and so on.
@ -25,9 +25,9 @@ There are two solutions for that problem:
In action:
```js run
let reg = /Java(Script)?|C(\+\+)?|PHP/g;
let regexp = /Java(Script)?|C(\+\+)?|PHP/g;
let str = "Java, JavaScript, PHP, C, C++";
alert( str.match(reg) ); // Java,JavaScript,PHP,C,C++
alert( str.match(regexp) ); // Java,JavaScript,PHP,C,C++
```

4
9-regular-expressions/13-regexp-alternation/01-find-programming-language/task.md
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@ -5,7 +5,7 @@ There are many programming languages, for instance Java, JavaScript, PHP, C, C++
Create a regexp that finds them in the string `subject:Java JavaScript PHP C++ C`:
```js
let reg = /your regexp/g;
let regexp = /your regexp/g;
alert("Java JavaScript PHP C++ C".match(reg)); // Java JavaScript PHP C++ C
alert("Java JavaScript PHP C++ C".match(regexp)); // Java JavaScript PHP C++ C
```