Currently I have a big string paragraph displayed using <pre>
like the following where each line is represented using new line:
SchoolDistrictCode:291238-9
location_version:3.4
build:e9kem
From this, how can I parse just the build:e9kem
out? The data varies every time, so once it recognizes the word build
, would like to parse just that line.
/^build:(.*)$/m
should do the trick. The m
flag will cause the ^
and $
anchors to match at the beginning and end of the line.
If you call this as
string.match(regexp)
The matching part (after the build:
, the part matching .*
, which is the string e9kem
) will be in the second element of the resulting array.
const regexp = /^build:(.*)$/m; const stringPar = `SchoolDistrictCode:291238-9 location_version:3.4 build:e9kem`; console.log(stringPar.match(regexp)[1]);
Of course, match
returns null
if there are no matches, so you may want to check that:
var matches = stringPar.match(regexp);
if (matches) console.log(matches[1]);
else console.log("No match.");
Or, another common idiom is
console.log((stringPar.match(regexp) || [])[1]);
which will log undefined
if there is not match.
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