How to search and replace multiple words with onother multiple words ? and without change between quoted marks ?

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i want to change this string..

str = "d.w('download');"

to this string..

document.write('download');

somehow its returns..
d.write('dowritenload');

here i dont want to change letters between '' or "" marks and returns d as document.

i tried to find it on w3schools. there are every code's sample but i dont know how to arrange those code with each other in my script ?

What I have tried:

Posted 5-Aug-16 3:20am

prasad sawant

Updated 5-Aug-16 3:50am

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2 solutions

Solution 1

C#

str = "d.w('download');"

re = str.replace(/d/g, "document");
re = str.replace(/w/g, "write");

You may wish to restrict your replace to the first incidence of 'd' and 'w'. Check your regular expression syntax and figure it out from there.

Eg., back to your w3Schools reference: RegExp g Modifier[^]

Posted 5-Aug-16 3:28am

W∴ Balboos, GHB

Updated 5-Aug-16 3:31am

v3

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Karthik_Mahalingam · Accepted Answer · 2016-08-05T03:50:00

Solution 2

try

C#

str = "d.w('download');"
str = str.replace('d.w', "document.write");

// or
str = str.replace('d.', "document.");
str = str.replace('w(', "write(");

Posted 5-Aug-16 3:50am

Karthik_Mahalingam

Comments

prasad sawant 5-Aug-16 12:06pm

but what if d. and "download." both d. are same and they will replace as "downloadocument." i want the answer for this how to not change words between quotes.

prasad sawant 5-Aug-16 12:10pm

those both str variable not execute at same time only last variables value returns the answer, i want single variable for executing.

Karthik_Mahalingam 5-Aug-16 12:16pm

str = str.replace('d.', "document.").replace('w(', "write(");

prasad sawant 5-Aug-16 12:16pm

"d.w(" is perfect i also used it many times but i scared what will happen if it comes again in strings so how can i remove it or stope it. like

d.w("d.w(");

it will return

document.write("document.write(");

Karthik_Mahalingam 5-Aug-16 12:29pm

try this

var str = 'd.w("d.w(")'
var temp = str.substring(0,5).replace('d.w','document.write')
var content = str.substring(5,str.lastIndexOf(')' )) + ')'
str = temp + content

prasad sawant 5-Aug-16 13:48pm

i have more libraries and i m thinking that between string problem will occur soon,

can u explain this method which i have seen on some websites..

myObj = {a = "b", c = "d", e = "f"};

str.replace(/(a|b|c)/g, function (matched)
{myObj[matched];}

this code doesnt work on my browser what is wrong with it ?

Karthik_Mahalingam 5-Aug-16 13:56pm

valid syntax is myObj = {a : "b", c :"d", e :"f"};

it will find the char matching a, b,c in the string and replace it with b,d,f

Karthik_Mahalingam 5-Aug-16 13:56pm

JavaScript String replace() Method[^]

prasad sawant 5-Aug-16 14:19pm

but with : colon its also not works i tried with RegExp() also not works, i think i need proper syntax for this w3schools only have basic knowledge not complex. can u write proper whole code here like previous substring which was accurate but it works only once because it needs g modifier and when i put g modifier in it like /d.w(/g it shows error because of ( round bracket may be. so i need proper programming code which will not affect code between (brackets) in strings

Karthik_Mahalingam 6-Aug-16 0:42am

try this
var str = 'd.w("d.w(")'
var temp = str.substring(0,5).replace('d.w','document.write')
var content = str.substring(5,str.lastIndexOf(')' )) + ')'
str = temp + content

prasad sawant 6-Aug-16 8:06am

u dindnt get it but thanks, ur substring method. and other method which gave me many options to think.

Karthik_Mahalingam 6-Aug-16 9:00am

ok