jquery converts characters into array

jQuery is a very popular JavaScript library that provides many convenient and fast operation methods, which not only simplifies code but also improves development efficiency. In jQuery, we can easily convert strings into arrays. This article will introduce how to use jQuery to achieve this function.

Use the split() method to convert a string into an array

In jQuery, we can use the split() method to convert a string into an array. This method accepts a string parameter as a delimiter, then splits the original string according to this delimiter and generates an array.

The following is a simple example. In this example, we use commas as delimiters to convert a string into an array:

var str = "apple,banana,orange,grape"; var arr = str.split(","); console.log(arr);

The running result is:

[ "apple", "banana", "orange", "grape" ]

At this time, the original string is successfully converted into an array. You can traverse, sort, and other operations on it like other arrays.

It should be noted that the split() method will change the original string. If you want to keep the original string, you need to store it in another variable, or use the cloned version of the split() method slice ().

Use the map() method to convert a string into an array

In addition to using the split() method, we can also use the map() method in jQuery to convert a string into an array. This method accepts a function as an argument, then applies the function to each element and stores the result in a new array.

The following is an example. In this example, we store each character as an element in a new array:

var str = "hello"; var arr = $.map(str.split(""), function(c) { return c; }); console.log(arr);

The running result is:

[ "h", "e", "l", "l", "o" ]

At this point we have successfully converted the original string into an array.

It should be noted that the map() method will not change the original string or array, but will generate a new array. If you want to change the original string or array, you need to use other methods, such as split() method.

Conclusion

In jQuery, we can use the split() method and map() method to convert a string into an array. Both methods can achieve this function, which method to use depends on your needs and programming habits. No matter which method is used, we can easily convert a string into an array and perform subsequent operations.

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