Using the indexOf method on an array of objects Asked 13 years, 11 months ago Modified 3 months ago Viewed 927k times

JavaScript indexOf method with multiple values Asked 9 years, 7 months ago Modified 3 years, 11 months ago Viewed 67k times

In javascript, is there an equivalent of String.indexOf (...) that takes a regular expression instead of a string for the first parameter, while still allowing a second parameter ? I need to do some...

Jan 3, 2017 · Furthermore, indexOf () compares searchElement to elements of the Array using strict equality (the same method used by the === or triple-equals operator).

Dec 21, 2011 · I am learning Javascript and don't understand why the indexOf below returns -1: var string = "The quick brown fox jumps over the lazy dog"; console.log (string.indexOf("good"));

Oct 2, 2012 · Add .toUpperCase() after referrer. This method turns the string into an upper case string. Then, use .indexOf() using RAL instead of Ral.

Dec 9, 2008 · If your situation requires the use of a regular expression, use the search() method, otherwise; the indexOf() method is more performant.

I am trying to find if an image has in its source name noPic which can be in upper or lower case. var noPic = largeSrc.indexOf("nopic"); Should I write : var noPic = largeSrc.toLowerCase().indexOf("

Jun 18, 2012 · This little piece of code will ensure you can use the indexOf method to find where a given value is in a one-dimensional array. With your 2-dimensional array, each element in the outer array is …

Dec 27, 2013 · The .indexOf() method has an optional second parameter that specifies the index to start searching from, so you can call it in a loop to find all instances of a particular value: