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Created December 4, 2016 04:03
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Control Flow Control flow studies // source https://jsbin.com/xitune
Raw
index.html
<!DOCTYPE html>
<html>
<head>
<meta name="description" content="Control flow studies">
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>Control Flow</title>
</head>
<body>
<script id="jsbin-javascript">
// -----Control Flow----- //
/* If statements are used in Javascript to make decisions--whether to execute a following
code or not. An if statement first evaluates the boolean within parentheses and then executes
the code within curly braces if the boolean was true: */
"use strict";
if (typeof "Is this a string?" === "string") {
console.log("Yup, it was a string");
}
/* If the boolean resolves to false, the code is simply passed over. Further keywords can
be used along with the if keyword to create chains of if else statements: */
var arr = [];
if (typeof arr === "string") {
console.log("I will be skipped :( ");
} else if (typeof arr === "number") {
console.log("I'm gonna be skipped, too! :((( ");
} else if (Array.isArray(arr)) {
console.log("Finally!");
}
/* lastly, a final else keyword can conclude chain, providing a default result if none of
the provided statements resolve to true. */
arr = {};
if (typeof arr === "string") {
console.log("I will be skipped :( ");
} else if (typeof arr === "number") {
console.log("I'm gonna be skipped, too! :((( ");
} else if (Array.isArray(arr)) {
console.log("Finally!");
} else {
console.log("You lied to me! I'll never forgive you.");
}
</script>
<script id="jsbin-source-javascript" type="text/javascript">// -----Control Flow----- //
/* If statements are used in Javascript to make decisions--whether to execute a following
code or not. An if statement first evaluates the boolean within parentheses and then executes
the code within curly braces if the boolean was true: */
if (typeof "Is this a string?" === "string") {
console.log("Yup, it was a string");
}
/* If the boolean resolves to false, the code is simply passed over. Further keywords can
be used along with the if keyword to create chains of if else statements: */
var arr = [];
if (typeof arr === "string") {
console.log("I will be skipped :( ");
} else if (typeof arr === "number") {
console.log("I'm gonna be skipped, too! :((( ");
} else if (Array.isArray(arr)) {
console.log("Finally!");
}
/* lastly, a final else keyword can conclude chain, providing a default result if none of
the provided statements resolve to true. */
arr = {};
if (typeof arr === "string") {
console.log("I will be skipped :( ");
} else if (typeof arr === "number") {
console.log("I'm gonna be skipped, too! :((( ");
} else if (Array.isArray(arr)) {
console.log("Finally!");
} else {
console.log("You lied to me! I'll never forgive you.");
}</script></body>
</html>
Raw
jsbin.xitune.js
// -----Control Flow----- //
/* If statements are used in Javascript to make decisions--whether to execute a following
code or not. An if statement first evaluates the boolean within parentheses and then executes
the code within curly braces if the boolean was true: */
"use strict";
if (typeof "Is this a string?" === "string") {
console.log("Yup, it was a string");
}
/* If the boolean resolves to false, the code is simply passed over. Further keywords can
be used along with the if keyword to create chains of if else statements: */
var arr = [];
if (typeof arr === "string") {
console.log("I will be skipped :( ");
} else if (typeof arr === "number") {
console.log("I'm gonna be skipped, too! :((( ");
} else if (Array.isArray(arr)) {
console.log("Finally!");
}
/* lastly, a final else keyword can conclude chain, providing a default result if none of
the provided statements resolve to true. */
arr = {};
if (typeof arr === "string") {
console.log("I will be skipped :( ");
} else if (typeof arr === "number") {
console.log("I'm gonna be skipped, too! :((( ");
} else if (Array.isArray(arr)) {
console.log("Finally!");
} else {
console.log("You lied to me! I'll never forgive you.");
}
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