How to loop through a string for a regex match, concat return new full string

I'm trying to achieve:

const finalStr = "team='Core', team='Mechanics'"

//loop through string, get single quotes, add <bold>'Core'</bold>

//I want to return the string: 

"team=<bold>'Core'</bold>, team=<bold>'Mechanics'</bold>"

What I've tried, but obviously wrong...can't wrap my head around it:

const finalStr = this.state.finalString

const newFinal = finalStr.match(/'(.*?)'/g).map(item => {

    item = item.replace(item, '<b>' + item + '</b>')

      return item;

    });

edited Nov 14 '18 at 19:16

asked Nov 13 '18 at 21:02

benishky

13312

1

no need to loop, just replace once: replace(/.../g, '$&')

– georg
Nov 13 '18 at 21:05

Are you trying to generate HTML with that? If so, the correct tag is , not <bold>, as that tag doesn't exist.

– Herohtar
Nov 13 '18 at 21:16

thanks @georg Perfect! I over-complicated it as usual.

– benishky
Nov 13 '18 at 21:19

add a comment |

I'm trying to achieve:

const finalStr = "team='Core', team='Mechanics'"

//loop through string, get single quotes, add <bold>'Core'</bold>

//I want to return the string: 

"team=<bold>'Core'</bold>, team=<bold>'Mechanics'</bold>"

What I've tried, but obviously wrong...can't wrap my head around it:

const finalStr = this.state.finalString

const newFinal = finalStr.match(/'(.*?)'/g).map(item => {

    item = item.replace(item, '<b>' + item + '</b>')

      return item;

    });

edited Nov 14 '18 at 19:16

asked Nov 13 '18 at 21:02

benishky

13312

1

no need to loop, just replace once: replace(/.../g, '$&')

– georg
Nov 13 '18 at 21:05

Are you trying to generate HTML with that? If so, the correct tag is , not <bold>, as that tag doesn't exist.

– Herohtar
Nov 13 '18 at 21:16

thanks @georg Perfect! I over-complicated it as usual.

– benishky
Nov 13 '18 at 21:19

add a comment |

I'm trying to achieve:

const finalStr = "team='Core', team='Mechanics'"

//loop through string, get single quotes, add <bold>'Core'</bold>

//I want to return the string: 

"team=<bold>'Core'</bold>, team=<bold>'Mechanics'</bold>"

What I've tried, but obviously wrong...can't wrap my head around it:

const finalStr = this.state.finalString

const newFinal = finalStr.match(/'(.*?)'/g).map(item => {

    item = item.replace(item, '<b>' + item + '</b>')

      return item;

    });

edited Nov 14 '18 at 19:16

asked Nov 13 '18 at 21:02

benishky

13312

I'm trying to achieve:

const finalStr = "team='Core', team='Mechanics'"

//loop through string, get single quotes, add <bold>'Core'</bold>

//I want to return the string: 

"team=<bold>'Core'</bold>, team=<bold>'Mechanics'</bold>"

What I've tried, but obviously wrong...can't wrap my head around it:

const finalStr = this.state.finalString

const newFinal = finalStr.match(/'(.*?)'/g).map(item => {

    item = item.replace(item, '<b>' + item + '</b>')

      return item;

    });

javascript regex dictionary match

edited Nov 14 '18 at 19:16

asked Nov 13 '18 at 21:02

benishky

13312

edited Nov 14 '18 at 19:16

asked Nov 13 '18 at 21:02

benishky

13312

edited Nov 14 '18 at 19:16

asked Nov 13 '18 at 21:02

benishky

13312

asked Nov 13 '18 at 21:02

benishky

13312

asked Nov 13 '18 at 21:02

benishky

13312

1

no need to loop, just replace once: replace(/.../g, '$&')

– georg
Nov 13 '18 at 21:05

Are you trying to generate HTML with that? If so, the correct tag is , not <bold>, as that tag doesn't exist.

– Herohtar
Nov 13 '18 at 21:16

thanks @georg Perfect! I over-complicated it as usual.

– benishky
Nov 13 '18 at 21:19

add a comment |

1

no need to loop, just replace once: replace(/.../g, '$&')

– georg
Nov 13 '18 at 21:05

Are you trying to generate HTML with that? If so, the correct tag is , not <bold>, as that tag doesn't exist.

– Herohtar
Nov 13 '18 at 21:16

thanks @georg Perfect! I over-complicated it as usual.

– benishky
Nov 13 '18 at 21:19

no need to loop, just replace once: replace(/.../g, '$&')

– georg
Nov 13 '18 at 21:05

Are you trying to generate HTML with that? If so, the correct tag is , not <bold>, as that tag doesn't exist.

– Herohtar
Nov 13 '18 at 21:16

thanks @georg Perfect! I over-complicated it as usual.

– benishky
Nov 13 '18 at 21:19

add a comment |

2 Answers
2

active

oldest

votes

You don't need a callback or any additional functions, just use the replacement pattern described in the String.replace() documentation to insert the matched substring ($&). You also don't need the parenthesis for the capture group unless you're intending to do something else with the matches.

const finalStr = "team='Core', team='Mechanics'"



const newFinal = finalStr.replace(/'.*?'/g, '<bold>$&</bold>')

console.log(newFinal)

As a side note, there is no <bold> tag in HTML, so if you are trying to create valid HTML you should be using .

edited Nov 13 '18 at 21:23

answered Nov 13 '18 at 21:14

Herohtar

2,88411826

add a comment |

You could use the same basic regular expression, /'.*?'/gi, with a custom "replacer" callback passed to the string#replace method to solve this:

const input = "team='Core', team='Mechanics'"



const output = input.replace(/'.*?'/gi, function(matchStr) {



  // Wrap each match in the resulting string with <bold /> tags 

  return '<bold>' + matchStr + '</bold>';

});



console.log(output);

edited Nov 14 '18 at 2:30

answered Nov 13 '18 at 21:07

Dacre Denny

11.2k41030

1

The regular expression in the original attempt would capture multi-word items, but using w prevents this, so it won't produce exactly the same results. OP didn't specify that as a requirement, but it might be good to note.

– Herohtar
Nov 13 '18 at 21:26

@Herohtar thanks for the feedback - very good point, I'd only paid attention to the input data in the OP and hadn't considered that possibility of white-spaces etc. Thanks again!

– Dacre Denny
Nov 14 '18 at 2:31

add a comment |

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2 Answers
2

active

oldest

votes

2 Answers
2

active

oldest

votes

const finalStr = "team='Core', team='Mechanics'"



const newFinal = finalStr.replace(/'.*?'/g, '<bold>$&</bold>')

console.log(newFinal)

As a side note, there is no <bold> tag in HTML, so if you are trying to create valid HTML you should be using .

edited Nov 13 '18 at 21:23

answered Nov 13 '18 at 21:14

Herohtar

2,88411826

add a comment |

const finalStr = "team='Core', team='Mechanics'"



const newFinal = finalStr.replace(/'.*?'/g, '<bold>$&</bold>')

console.log(newFinal)

As a side note, there is no <bold> tag in HTML, so if you are trying to create valid HTML you should be using .

edited Nov 13 '18 at 21:23

answered Nov 13 '18 at 21:14

Herohtar

2,88411826

add a comment |

const finalStr = "team='Core', team='Mechanics'"



const newFinal = finalStr.replace(/'.*?'/g, '<bold>$&</bold>')

console.log(newFinal)

As a side note, there is no <bold> tag in HTML, so if you are trying to create valid HTML you should be using .

edited Nov 13 '18 at 21:23

answered Nov 13 '18 at 21:14

Herohtar

2,88411826

const finalStr = "team='Core', team='Mechanics'"



const newFinal = finalStr.replace(/'.*?'/g, '<bold>$&</bold>')

console.log(newFinal)

As a side note, there is no <bold> tag in HTML, so if you are trying to create valid HTML you should be using .

const finalStr = "team='Core', team='Mechanics'"



const newFinal = finalStr.replace(/'.*?'/g, '<bold>$&</bold>')

console.log(newFinal)

const finalStr = "team='Core', team='Mechanics'"



const newFinal = finalStr.replace(/'.*?'/g, '<bold>$&</bold>')

console.log(newFinal)

edited Nov 13 '18 at 21:23

answered Nov 13 '18 at 21:14

Herohtar

2,88411826

edited Nov 13 '18 at 21:23

answered Nov 13 '18 at 21:14

Herohtar

2,88411826

answered Nov 13 '18 at 21:14

Herohtar

2,88411826

answered Nov 13 '18 at 21:14

Herohtar

2,88411826

add a comment |

You could use the same basic regular expression, /'.*?'/gi, with a custom "replacer" callback passed to the string#replace method to solve this:

const input = "team='Core', team='Mechanics'"



const output = input.replace(/'.*?'/gi, function(matchStr) {



  // Wrap each match in the resulting string with <bold /> tags 

  return '<bold>' + matchStr + '</bold>';

});



console.log(output);

edited Nov 14 '18 at 2:30

answered Nov 13 '18 at 21:07

Dacre Denny

11.2k41030

1

The regular expression in the original attempt would capture multi-word items, but using w prevents this, so it won't produce exactly the same results. OP didn't specify that as a requirement, but it might be good to note.

– Herohtar
Nov 13 '18 at 21:26

@Herohtar thanks for the feedback - very good point, I'd only paid attention to the input data in the OP and hadn't considered that possibility of white-spaces etc. Thanks again!

– Dacre Denny
Nov 14 '18 at 2:31

add a comment |

You could use the same basic regular expression, /'.*?'/gi, with a custom "replacer" callback passed to the string#replace method to solve this:

const input = "team='Core', team='Mechanics'"



const output = input.replace(/'.*?'/gi, function(matchStr) {



  // Wrap each match in the resulting string with <bold /> tags 

  return '<bold>' + matchStr + '</bold>';

});



console.log(output);

edited Nov 14 '18 at 2:30

answered Nov 13 '18 at 21:07

Dacre Denny

11.2k41030

1

The regular expression in the original attempt would capture multi-word items, but using w prevents this, so it won't produce exactly the same results. OP didn't specify that as a requirement, but it might be good to note.

– Herohtar
Nov 13 '18 at 21:26

@Herohtar thanks for the feedback - very good point, I'd only paid attention to the input data in the OP and hadn't considered that possibility of white-spaces etc. Thanks again!

– Dacre Denny
Nov 14 '18 at 2:31

add a comment |

You could use the same basic regular expression, /'.*?'/gi, with a custom "replacer" callback passed to the string#replace method to solve this:

const input = "team='Core', team='Mechanics'"



const output = input.replace(/'.*?'/gi, function(matchStr) {



  // Wrap each match in the resulting string with <bold /> tags 

  return '<bold>' + matchStr + '</bold>';

});



console.log(output);

edited Nov 14 '18 at 2:30

answered Nov 13 '18 at 21:07

Dacre Denny

11.2k41030

You could use the same basic regular expression, /'.*?'/gi, with a custom "replacer" callback passed to the string#replace method to solve this:

const input = "team='Core', team='Mechanics'"



const output = input.replace(/'.*?'/gi, function(matchStr) {



  // Wrap each match in the resulting string with <bold /> tags 

  return '<bold>' + matchStr + '</bold>';

});



console.log(output);

const input = "team='Core', team='Mechanics'"



const output = input.replace(/'.*?'/gi, function(matchStr) {



  // Wrap each match in the resulting string with <bold /> tags 

  return '<bold>' + matchStr + '</bold>';

});



console.log(output);

const input = "team='Core', team='Mechanics'"



const output = input.replace(/'.*?'/gi, function(matchStr) {



  // Wrap each match in the resulting string with <bold /> tags 

  return '<bold>' + matchStr + '</bold>';

});



console.log(output);

edited Nov 14 '18 at 2:30

answered Nov 13 '18 at 21:07

Dacre Denny

11.2k41030

edited Nov 14 '18 at 2:30

answered Nov 13 '18 at 21:07

Dacre Denny

11.2k41030

answered Nov 13 '18 at 21:07

Dacre Denny

11.2k41030

answered Nov 13 '18 at 21:07

Dacre Denny

11.2k41030

1

The regular expression in the original attempt would capture multi-word items, but using w prevents this, so it won't produce exactly the same results. OP didn't specify that as a requirement, but it might be good to note.

– Herohtar
Nov 13 '18 at 21:26

@Herohtar thanks for the feedback - very good point, I'd only paid attention to the input data in the OP and hadn't considered that possibility of white-spaces etc. Thanks again!

– Dacre Denny
Nov 14 '18 at 2:31

add a comment |

1

The regular expression in the original attempt would capture multi-word items, but using w prevents this, so it won't produce exactly the same results. OP didn't specify that as a requirement, but it might be good to note.

– Herohtar
Nov 13 '18 at 21:26

@Herohtar thanks for the feedback - very good point, I'd only paid attention to the input data in the OP and hadn't considered that possibility of white-spaces etc. Thanks again!

– Dacre Denny
Nov 14 '18 at 2:31

The regular expression in the original attempt would capture multi-word items, but using w prevents this, so it won't produce exactly the same results. OP didn't specify that as a requirement, but it might be good to note.

– Herohtar
Nov 13 '18 at 21:26

@Herohtar thanks for the feedback - very good point, I'd only paid attention to the input data in the OP and hadn't considered that possibility of white-spaces etc. Thanks again!

– Dacre Denny
Nov 14 '18 at 2:31

add a comment |

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