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  1. How to check whether a string contains a substring in JavaScript ...

    Nov 24, 2009 · Usually I would expect a String.contains() method, but there doesn't seem to be one. What is a reasonable way to check for this?

  2. javascript - Check if a string has a certain piece of text - Stack …

    Possible Duplicates: Check if text is in a string JavaScript: string contains I'm trying to check if a string I import into my application has a certain piece of text. I know how to do this w...

  3. javascript - How to use .contains () or any other function to see if ...

    May 29, 2021 · I want to be able to scan to see if any part of the string contains any one of the elements in the array and so far, only the first solution works for me. If there is a modification …

  4. How to tell if a string contains a certain character in JavaScript?

    16 ES6 contains inbuilt method (includes) in String's prototype, which can be used to check if string contains another string or not.

  5. How to check if a string contains text from an array of substrings …

    Apr 7, 2011 · Pretty straight forward. In javascript, I need to check if a string contains any substrings held in an array.

  6. javascript - Check if text is in a string - Stack Overflow

    I want to check is some text is in a string for instance i have a string str = "car, bycicle, bus" and I have another string str2 = "car" I want to check if str2 is in str. I am a newbie in java...

  7. How do I check if an array includes a value in JavaScript?

    What is the most concise and efficient way to find out if a JavaScript array contains a value? This is the only way I know to do it: function contains (a, obj) { for (var i = 0; i < a.length;...

  8. javascript - How do I check if string contains substring ... - Stack ...

    1168 This question already has answers here: How to check whether a string contains a substring in JavaScript? (3 answers)

  9. javascript - if variable contains - Stack Overflow

    Oct 22, 2012 · Possible Duplicate: JavaScript: string contains I have a postcode variable and want to use JS to add a location into a different variable when the postcode is changed/entered. So …

  10. javascript - How can I check that a string does not include the text …

    Feb 12, 2016 · var include_flag = toState.name.includes("home.subjects.subject.exams.exam.tests"); return !include_flag; Using …