how to replace words in string using javascript?

Question

i have a string,

mystr = 'public\uploads\file-1490095922739.jpg';

i want to replace

public\uploads

with " ", so that i just want to extract only file name ie

file-1490095922739.jpg

or like,

\uploads\file-1490095922739.jpg

how can i do this, is there any methods for this in js or can we do it by replace method.

i am performing the following steps,

var imagepath1;
var imagepath = 'public\uploads\file-1490095922739.jpg';
unwantedChar = 'public|uploads';
regExp = new RegExp(unwantedChar , 'gi');
imagepath = imagepath.replace(regExp , '');
imagepath1 = imagepath;
$scope.model.imagepath = imagepath1.replace(/\\/g, "");

please suggest me optimized method.

Is the part you are looking for always the part after the last `\` character? — x-ray
– x-ray, Commented Mar 21, 2017 at 12:06
no i want to remove the word "public\uploads" so that i remain with the filename "file.jpg". — JpG
– JpG, Commented Mar 21, 2017 at 12:10
So that is not the same thing? In other words, could public\uploads be followed by anything else than a single filename separated by a backslash? — x-ray
– x-ray, Commented Mar 21, 2017 at 12:12
So what should happen if the input is \uploads\file-1490095922739.jpg? — x-ray
– x-ray, Commented Mar 21, 2017 at 12:24

DibsyJr · Accepted Answer · 2017-03-21 12:25:07Z

1

var input = "public\\uploads\\file-1490095922739.jpg";
var result = input.replace("public\\uploads\\", "");

This is what you're looking for, no need for fancy regexs :). More information about replace can be found here.

edited Mar 21, 2017 at 12:25

DibsyJr

8847 silver badges18 bronze badges

answered Mar 21, 2017 at 12:08

Dax

2032 silver badges7 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

itamar · Accepted Answer · 2017-03-21 12:06:26Z

0

Maybe I don't understand the issue - but wouldn't this work?

var mystr = 'public\uploads\file-1490095922739.jpg';
var filename = mystr.replace('public\uploads', '');

answered Mar 21, 2017 at 12:06

itamar

3,9775 gold badges37 silver badges61 bronze badges

3 Comments

JpG Over a year ago

i tried the same but it is throwing the following error Uncaught SyntaxError: Invalid Unicode escape sequence

itamar Over a year ago

Ah yeah as @Dax pointed out - you need to escape the slashes. :-)

JpG Over a year ago

yeah that's working fine, need to escape the slashes :-)

x-ray · Accepted Answer · 2017-03-21 12:15:58Z

0

If you want to get the part of the string after the last backslash character, you can use this:

var filename = mystr.substr(mystr.lastIndexOf('\\') + 1);

Also note that you need to escape the backslash characters in your test string:

var mystr = 'public\\uploads\\file-1490095922739.jpg';

edited Mar 21, 2017 at 12:15

answered Mar 21, 2017 at 12:09

x-ray

3,3475 gold badges26 silver badges39 bronze badges

Comments

DibsyJr · Accepted Answer · 2017-03-21 12:18:46Z

0

What about just doing:

var imagepath = 'public\\uploads\\file-1490095922739.jpg';
$scope.model.imagepath = imagepath.replace('public\\uploads\\', '');

instead of using a bunch of unnecessary variables?

This way you're getting the file path, removing public\uploads\ and then setting the file path to $scope.model.imagepath

Note that this will only work if the image file path always matches 'public\uploads\*FILENAME*'.

edited Mar 21, 2017 at 12:18

answered Mar 21, 2017 at 12:07

DibsyJr

8847 silver badges18 bronze badges

1 Comment

JpG Over a year ago

Uncaught SyntaxError: Invalid Unicode escape sequence,,,,,,,,,, the above stated logic works fine

DDT · Accepted Answer · 2017-03-22 03:14:12Z

0

var url = '/anysource/anypath/myfilename.gif';
var filename = url.slice(url.lastIndexOf('/')+1,url.length);

Search for the last forward slash, and slice the string (+1 because you don't want the slash), with the length of the string to get the filename. This way, you don't have to worry about the path is at all times.

edited Mar 22, 2017 at 3:14

answered Mar 21, 2017 at 12:14

DDT

4245 silver badges15 bronze badges

Collectives™ on Stack Overflow

how to replace words in string using javascript?

5 Answers 5

Comments

3 Comments

Comments

1 Comment

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

5 Answers 5

Comments

3 Comments

Comments

1 Comment

Comments

Your Answer

Sign up or log in

Post as a guest

Related