By using d{N,}
quantifier we can match any string that contains a sequense of at least N digits in a string.
NOTE: Atleast means exactly or more, eg: atleast 5 means 5 or more.
<p>Click the below button to match a sequence of atleast 4 digit number.</p> <input type="button" value="Click" onclick="mySearch()" /> <p id="myId"></p> <script> function mySearch() { var a = "525245, 4527, 651, 78452, 35, 4, 548624"; var b = /\d{4,}/g; var r = a.match(b); document.getElementById("myId").innerHTML = r; } </script>
In the above code snippet we have given Id
as "myId
"to the second <p>
element in the HTML code. There is a function mySearch() in the<script>
block which is connected to the onclick of the HTML button and there is a string with value "525245, 4527, 651, 78452, 32, 4, 548624" to the variable a
, we need to match any string that contains a sequence of atleast N digits, for that we are using d{N,}
quantifier in variable b
. var b = /\d{4,}/g
here \d
is the metacharacter for finding a digit, {4,} is the input value of {N,}
for matching any string that contains a sequence of atleast 4-digit numbers and g
do the global search in a string, varaible r
returns the matched sequence result. Onclick of the button "Click" in the HTML code fires the function mySearch() in the <script>
block at the same time d{N,}
quantifier matches any string that contains a sequence of atleast N digits (N=4 & N,=4 or more) in a string with the help of global search g
and gives the output.
OUTPUT
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