How to convert string to array in javascript
In JavaScript, you can use the split() method to convert a string into an array. This method can split a string into a string array and return it. The syntax format is "string.split(separator, required Returns the length of the array)".
The operating environment of this tutorial: Windows 7 system, ECMAScript version 5, Dell G3 computer.
javascript converts string to array
var str="How are you doing today?"; var arr=str.split(" "); console.log(arr);
Output:
[Recommended learning: js basic tutorial】
Introduction to related functions:
split() method is used to split a string into a string array. This method can specify two parameters. The first parameter is the separator, specifying where to separate the mark; the second parameter specifies the length of the array to be returned. The syntax is as follows:
string.split(separator,limit)
Return value: a string array. The array is created by splitting the string string Object into substrings at the boundaries specified by separator. The strings in the returned array do not include the separator itself.
For more programming related knowledge, please visit: Programming Video! !
The above is the detailed content of How to convert string to array in javascript. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics



The method of using a foreach loop to remove duplicate elements from a PHP array is as follows: traverse the array, and if the element already exists and the current position is not the first occurrence, delete it. For example, if there are duplicate records in the database query results, you can use this method to remove them and obtain results without duplicate records.

Methods for deep copying arrays in PHP include: JSON encoding and decoding using json_decode and json_encode. Use array_map and clone to make deep copies of keys and values. Use serialize and unserialize for serialization and deserialization.

The performance comparison of PHP array key value flipping methods shows that the array_flip() function performs better than the for loop in large arrays (more than 1 million elements) and takes less time. The for loop method of manually flipping key values takes a relatively long time.

PHP's array_group_by function can group elements in an array based on keys or closure functions, returning an associative array where the key is the group name and the value is an array of elements belonging to the group.

The best practice for performing an array deep copy in PHP is to use json_decode(json_encode($arr)) to convert the array to a JSON string and then convert it back to an array. Use unserialize(serialize($arr)) to serialize the array to a string and then deserialize it to a new array. Use the RecursiveIteratorIterator to recursively traverse multidimensional arrays.

Multidimensional array sorting can be divided into single column sorting and nested sorting. Single column sorting can use the array_multisort() function to sort by columns; nested sorting requires a recursive function to traverse the array and sort it. Practical cases include sorting by product name and compound sorting by sales volume and price.

The PHP array merging and deduplication algorithm provides a parallel solution, dividing the original array into small blocks for parallel processing, and the main process merges the results of the blocks to deduplicate. Algorithmic steps: Split the original array into equally allocated small blocks. Process each block for deduplication in parallel. Merge block results and deduplicate again.

PHP's array_group() function can be used to group an array by a specified key to find duplicate elements. This function works through the following steps: Use key_callback to specify the grouping key. Optionally use value_callback to determine grouping values. Count grouped elements and identify duplicates. Therefore, the array_group() function is very useful for finding and processing duplicate elements.
