Numbers in JavaScript: Handling and Operations
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JavaScript has only one type of numbers.
Numbers can be written with, or without decimals:
<span class="pln"> </span><span class="kwd">var</span><span class="pln"> a </span><span class="pun">=</span><span class="pln"> </span><span class="lit">14.00</span><span class="pun">;</span><span class="pln"> </span><span class="com">// Written with decimals</span><span class="pln"> </span><span class="kwd">var</span><span class="pln"> b </span><span class="pun">=</span><span class="pln"> </span><span class="lit">14</span><span class="pun">;</span><span class="pln"> </span><span class="com">// Written without decimals</span><span class="pln"> </span>
Extra large or extra small numbers can be written with scientific (exponential) notation:
<span class="pln"> </span><span class="kwd">var</span><span class="pln"> y </span><span class="pun">=</span><span class="pln"> </span><span class="lit">163e6</span><span class="pun">;</span><span class="pln"> </span><span class="kwd">var</span><span class="pln"> z </span><span class="pun">=</span><span class="pln"> </span><span class="lit">163e-6</span><span class="pun">;</span><span class="pln"> </span>
You will learn more about numbers later in this tutorial.
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