indexof javascript support

As far as I'm aware, Array.indexOf isn't supported, however String.indexOf , as per your example above, is. The ...

indexof javascript support

As far as I'm aware, Array.indexOf isn't supported, however String.indexOf , as per your example above, is. The best way to work things like this out are to just try ... , indexOf() 方法會回傳給定元素於陣列中第一個被找到之索引,若不存在於陣列中則回傳-1。 ... JavaScript Demo: Array.indexOf(). ​x. 1. var beasts = ['ant' .... This will allow you to use indexOf() when there is still no native support.

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indexof javascript support 相關參考資料
IndexOf not Supported in IE8 Browser - Stack Overflow

The indexOf() method of Array s is not implemented in IE < 9. As you're using jQuery you can make use of the $.inArray() , e.g. var arr = ["foo", "bar", "baz"],&nb...

https://stackoverflow.com

Is it true that IE7 doesnt support indexOf javascript? - Stack ...

As far as I'm aware, Array.indexOf isn't supported, however String.indexOf , as per your example above, is. The best way to work things like this out are to just try ...

https://stackoverflow.com

Array.prototype.indexOf() - MDN - Mozilla

indexOf() 方法會回傳給定元素於陣列中第一個被找到之索引,若不存在於陣列中則回傳-1。 ... JavaScript Demo: Array.indexOf(). ​x. 1. var beasts = ['ant' .... This will allow you to use indexOf() when there is still no native suppor...

https://developer.mozilla.org

String.prototype.indexOf() - MDN - Mozilla

跳到 Browser compatibility - ... Chrome for Android, Edge Mobile, Firefox for Android, Opera for Android, Safari on iOS, Samsung Internet, Node.js ...

https://developer.mozilla.org

TypedArray.prototype.indexOf() | MDN

跳到 Browser compatibility - ... Chrome for Android, Edge Mobile, Firefox for Android, Opera for Android, Safari on iOS, Samsung Internet, Node.js ...

https://developer.mozilla.org

Array.prototype.findIndex() | MDN

The findIndex() method returns the index of the first element in the ... to support truly obsolete JavaScript engines that don't support Object.

https://developer.mozilla.org

String.prototype.lastIndexOf() | MDN

The lastIndexOf() method returns the index within the calling String object of the last occurrence of the specified ... JavaScript Demo: String.

https://developer.mozilla.org

JavaScript String indexOf() Method - W3Schools

The indexOf() method returns the position of the first occurrence of a specified value in a ... Note: The indexOf() method is case sensitive. ... Browser Support ...

https://www.w3schools.com

indexOf() - Can I use... Support tables for HTML5, CSS3, etc

Features include Function.prototype.bind , Array methods like indexOf .... many JavaScript features, un-numbered partial support varies widely and is shown in ...

https://caniuse.com