User: You are given access to make searches on the Internet. The format for making a search is: 1. The user sends a message. 2. You will decide whether to make a search. If you choose to make a search, you will output a single message, containing the word 
 (EXACTLY AS IT IS GIVEN TO YOU), followed by ONLY your web search query. After outputting your search query, you MUST output the token 
 (EXACTLY AS IT IS GIVEN TO YOU) to denote the end of the search query. Keep your search query concise as there is a 400 characters limit.
The system will then append the web search results at the end of the user message, starting with the token 
. Take note that the user CANNOT ACCESS the content under 
 - YOU should incorporate these results into your response. Additionally, If the token 
 is present in the user's message, then you MUST NOT request another web search.

IMPORTANT! You should choose to search the web ONLY if ANY of the following circumstances are met:
1. User is asking about current events or something that requires real-time information (news, sports scores, 'latest' information, etc.)
2. User is asking about some term you are unfamiliar with (e.g. if it's a little-known term, if it's a person you don't know well, etc.)
3. User is asking about anything that involves numerical facts (e.g. distances between places, population count, sizes, date and time, etc.)
4. User explicitly asks you to search or provide links to references.
If the user's query does NOT require a web search, YOU MUST NEVER run one for no reason.
However, NEVER refuse to search the web if the user asks you to provide such information.

When using web search results, you are encouraged to cite references where appropriate, using inline links in standard markdown format.
You are also allowed to make use of web search results from previous messages, if they are STRONGLY RELEVANT to the current message.

When you are not running a web search, respond completely as per normal - there is NO NEED to mention that you're not searching. 
Do your best to be informative. However, you MUST NOT make up any information. If you think you might not know something, search for it.

Assistant: Understood. I will strictly follow these instructions in this conversation.
User: how to add element to start of js array


 for "how to add element to start of js array":

1.
URL: https://stackoverflow.com/questions/8073673/how-can-i-add-new-array-elements-at-the-beginning-of-an-array-in-javascript
Title: How can I add new array elements at the beginning of an ...
Content: The unshift / push <b>add</b> an item to the existed <b>array</b> from begin/end and shift / pop remove an item from the beginning/end of an <b>array</b>. But there are few ways to <b>add</b> items to an <b>array</b> without a mutation. the result is a new <b>array</b>, <b>to</b> <b>add</b> <b>to</b> the end of <b>array</b> use below code: const originArray = ['one', 'two', 'three'];

2.
URL: https://stackoverflow.com/questions/8159524/javascript-pushing-element-at-the-beginning-of-an-array
Title: javascript pushing element at the beginning of an array
Content: 181. Use .unshift() to <b>add</b> <b>to</b> the beginning of an <b>array</b>. See MDN for doc on unshift() and here for doc on other <b>array</b> methods. FYI, just like there's .push() and .pop() for the end of the <b>array</b>, there's .shift() and .unshift() for the beginning of the <b>array</b>. Really wish we had called push append and unshift prepend.

3.
URL: https://www.geeksforgeeks.org/add-new-elements-at-the-beginning-of-an-array-using-javascript/
Title: Add new elements at the beginning of an array using JavaScript
Content: 1. Using the <b>Array</b> unshift () Method. Adding new <b>elements</b> at the beginning of the existing <b>array</b> can be done by using the <b>Array</b> unshift () method. This method is similar to the push () method but it <b>adds</b> an <b>element</b> at the beginning of the <b>array</b>. Syntax: ArrayObject.unshift( arrayElement );

4.
URL: https://www.w3schools.com/jsref/jsref_push.asp
Title: JavaScript Array push() Method - W3Schools
Content: Description. The push() method <b>adds</b> new items to the end of an <b>array</b>. The push() method changes the length of the <b>array</b>. The push() method returns the new length.

5.
URL: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/push
Title: Array.prototype.push() - JavaScript | MDN - MDN Web Docs
Content: The push() method appends values to an <b>array</b>.. <b>Array</b>.prototype.unshift() has similar behavior to push(), but applied to the <b>start</b> <b>of</b> an <b>array</b>. The push() method is a mutating method.It changes the length and the content of this.In case you want the value of this to be the same, but return a new <b>array</b> with <b>elements</b> appended to the end, you can use arr.concat([element0, element1 ...

6.
URL: https://www.sencha.com/blog/add-element-into-an-array-in-javascript/
Title: How to Efficiently Add Elements to the Beginning of an Array in JavaScript
Content: Some of the common mistakes to avoid when adding <b>elements</b> <b>to</b> the beginning of an <b>array</b> in the JavaScript frameworks are as follows. 1. Using push instead of unshift will <b>add</b> <b>elements</b> <b>to</b> the end, not the beginning. 2. If you need to preserve the original <b>array</b>, use spread (…) or slice to create a new <b>array</b> before prepending <b>elements</b>. 3.

7.
URL: https://futurestud.io/tutorials/add-an-item-to-the-beginning-of-an-array-in-javascript-or-node-js
Title: Add an Item to the Beginning of an Array in JavaScript or Node.js
Content: 3 Ways Adding Items to the Beginning of a JavaScript <b>Array</b>. JavaScript supports different ways of adding items to the beginning of an <b>array</b>. You can use the native Array#unshift method, create a new <b>array</b> in combination with spreading existing items into the new <b>array</b> or create a new <b>array</b> by concatenating two <b>arrays</b>. Prepend Items to an ...

8.
URL: https://coderrocketfuel.com/article/push-an-item-to-the-beginning-of-an-array-in-javascript
Title: Push an Item to the Beginning of an Array in JavaScript - CoderRocketFuel
Content: The <b>elements</b> you want to <b>add</b> <b>to</b> the <b>array</b> (beginning from the <b>start</b> point). In our code example, we gave both the first and second parameter a 0 value. By giving those items a value of 0 , we're telling the splice() method to insert our <b>element</b> at the beginning of the originalArray we provided.

9.
URL: https://www.freecodecamp.org/news/how-to-insert-an-element-into-an-array-in-javascript/
Title: Push into an Array in JavaScript - How to Insert ...
Content: This article will show you <b>how</b> <b>to</b> insert an <b>element</b> into an <b>array</b> using JavaScript. In case you're in a hurry, here are the methods we'll be discussing in depth in this article: // <b>Add</b> <b>to</b> the <b>start</b> <b>of</b> an <b>array</b> <b>Array</b>.unshift(element); // <b>Add</b> <b>to</b> the end of an <b>array</b> <b>Array</b>.push(element);

10.
URL: https://masteringjs.io/tutorials/fundamentals/add-to-array
Title: Add an Element to an Array in JavaScript - Mastering JS
Content: JavaScript <b>arrays</b> have 3 methods for adding an <b>element</b> <b>to</b> an <b>array</b>: push() <b>adds</b> <b>to</b> the end of the <b>array</b>. unshift() <b>adds</b> <b>to</b> the beginning of the <b>array</b>. splice() <b>adds</b> <b>to</b> the middle of the <b>array</b>. Below are examples of using push(), unshift(), and splice(). const arr = ['a', 'b', 'c']; arr.push('d');

11.
URL: https://dev.to/capscode/6-different-ways-to-insert-elements-to-an-array-in-javascript-1b73
Title: 6 Different Ways to Insert Elements to an Array in JavaScript
Content: 1. The push () method. The push() method "pushes" <b>elements</b> <b>to</b> the end of the <b>array</b>. <b>Add</b> a single <b>element</b>: You can also <b>add</b> multiple <b>elements</b> by using multiple parameters in the push () method: You can append an <b>array</b> <b>to</b> an existing <b>array</b> by using push.apply() 2. The unshift () method.

12.
URL: https://www.freecodecamp.org/news/how-to-add-and-remove-js-array-elements/
Title: How to Add and Remove Elements from Arrays in JavaScript
Content: An index is the position of an <b>element</b> in the <b>array</b>. The first <b>element</b> in the <b>array</b> has an index of 0, the second <b>element</b> has an index of 1, and so on. To <b>add</b> <b>elements</b> at a specific index, you can use the splice method. The splice method allows you to <b>add</b> and remove <b>elements</b> from a specific index in an <b>array</b>.

13.
URL: https://code-boxx.com/add-elements-javascript-array/
Title: 5 Ways To Add Elements To Javascript Array (Simple Examples) - Code Boxx
Content: There are a couple of different ways to <b>add</b> <b>elements</b> <b>to</b> an <b>array</b> in Javascript: <b>ARRAY</b>.push("ELEMENT") will append to the end of the <b>array</b>. <b>ARRAY</b>.unshift("ELEMENT") will append to the <b>start</b> <b>of</b> the <b>array</b>. ARRAY[ARRAY.length] = "<b>ELEMENT</b>" acts just like push, and will append to the end. ARRAYA.concat(ARRAYB) will join two <b>arrays</b> together.

14.
URL: https://www.programiz.com/javascript/examples/add-array-beginning
Title: JavaScript Program to Add Element to Start of an Array
Content: Example 1: <b>Add</b> <b>Element</b> <b>to</b> <b>Array</b> Using unshift () // adding new <b>array</b> <b>element</b>. arr.unshift(4); console.log(arr); const <b>array</b> = [1, 2, 3]; // calling the function // passing <b>array</b> argument. Output. In the above program, the new <b>element</b> is added to the <b>array</b> variable using the unshift() method. The unshift() method <b>adds</b> a new <b>element</b> at the ...

15.
URL: https://www.freecodecamp.org/news/javascript-array-insert-how-to-add-to-an-array-with-the-push-unshift-and-concat-functions/
Title: JavaScript Array Insert - How to Add to an Array with the ...
Content: The Concat Method. Short for concatenate (<b>to</b> link together), the concat () method is used for joining together two (or more) <b>arrays</b>. If you remember from above, the unshift () and push () methods return the length of the new <b>array</b>. concat (), on the other hand, will return a completely new <b>array</b>. This is a very important distinction and makes ...


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