day 5 interview qustions js

Author: nilajcoder

JavaScript Interview/Day 5/demo.js

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+/*
+
+When comparing a string to a number, JavaScript converts the string to a number.
+
+" " (a single space) gets converted to 0 because it doesn't contain numeric characters but can be interpreted as zero when coerced.
+The comparison becomes:
+0 > -1, which is true.
+1.
+console.log(" ">-1)//true
+console.log(" ">" ")//false
+console.log(""==true)//false
+console.log("g ">"5")//true   unicode value compares
+console.log(![]+[])//false
+
+
+
+2.
+let a = {}
+let b = {key: "b"}
+let c = { key: "c" }
+a[b] = 100;
+a[c] = 200;
+console.log(a[b])  //200
+
+
+
+3.A void element in HTML is an element that cannot have any child nodes, including text or other elements.
+
+Example:
+<area> – Defines a clickable area inside an image map.
+<base> – Specifies the base URL for all relative URLs in a document.
+<br> – Inserts a line break.
+<col> – Specifies column properties for <colgroup>.
+<embed> – Embeds external content like media or plugins.
+<hr> – Represents a thematic break (horizontal rule).
+<img> – Embeds an image.
+<input> – Represents an input field.
+<link> – Specifies relationships between the current document and external resources.
+<meta> – Provides metadata about the document.
+<source> – Specifies media resources for <audio> and <video>.
+<track> – Specifies text tracks for <video> and <audio>.
+<wbr>
+
+
+4. The <select> element is used to create a drop-down list.
+
+The <select> element is most often used in a form, to collect user input.
+
+The <datalist> tag specifies a list of pre-defined options for an <input> element.
+*/
+
+