WIP

1-js/01-a/1-a1/1-camelcase/solution/index.js

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+
+console.log("Hello");

1-js/01-a/1-a1/1-camelcase/source/index.js

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+function camelize(str) {
+  /* your code */
+}

1-js/01-a/1-a1/1-camelcase/source/test.js

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+describe("camelize", function() {
+
+  it("leaves an empty line as is", function() {
+    assert.equal(camelize(""), "");
+  });
+
+  it("turns background-color into backgroundColor", function() {
+    assert.equal(camelize("background-color"), "backgroundColor");
+  });
+
+  it("turns list-style-image into listStyleImage", function() {
+    assert.equal(camelize("list-style-image"), "listStyleImage");
+  });
+
+  it("turns -webkit-transition into WebkitTransition", function() {
+    assert.equal(camelize("-webkit-transition"), "WebkitTransition");
+  });
+
+});

1-js/01-a/1-a1/1-camelcase/task.md

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+importance: 5
+type: js
+
+---
+
+# Translate border-left-width to borderLeftWidth
+
+Write the function `camelize(str)` that changes dash-separated words like "my-short-string" into camel-cased "myShortString".
+
+That is: removes all dashes, each word after dash becomes uppercased.
+
+Examples:
+
+```js
+camelize("background-color") == 'backgroundColor';
+camelize("list-style-image") == 'listStyleImage';
+camelize("-webkit-transition") == 'WebkitTransition';
+```
+
+P.S. Hint: use `split` to split the string into an array, transform it and `join` back.

1-js/01-a/1-a1/2-runjs/solution/index.js

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+function camelize(str) {
+  return str
+    .split('-') // splits 'my-long-word' into array ['my', 'long', 'word']
+    .map(
+      // capitalizes first letters of all array items except the first one
+      // converts ['my', 'long', 'word'] into ['my', 'Long', 'Word']
+      (word, index) => index == 0 ? word : word[0].toUpperCase() + word.slice(1)
+    )
+    .join(''); // joins ['my', 'Long', 'Word'] into 'myLongWord'
+}

1-js/01-a/1-a1/2-runjs/source/index.js

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+console.log("Test", "passed");

1-js/01-a/1-a1/2-runjs/source/test.js

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+describe("runjs", function() {
+
+  it("passes", function() {  });
+  it("fails", function() { throw new Error("FAIL")  });
+
+});

1-js/01-a/1-a1/2-runjs/task.md

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+importance: 5
+type: js
+
+---
+
+# Translate border-left-width to borderLeftWidth
+
+Write the function `camelize(str)` that changes dash-separated words like "my-short-string" into camel-cased "myShortString".
+
+That is: removes all dashes, each word after dash becomes uppercased.
+
+Examples:
+
+```js
+camelize("background-color") == 'backgroundColor';
+camelize("list-style-image") == 'listStyleImage';
+camelize("-webkit-transition") == 'WebkitTransition';
+```
+
+P.S. Hint: use `split` to split the string into an array, transform it and `join` back.

1-js/01-a/1-a1/3-errorjs/solution/index.js

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+function camelize(str) {
+  return str
+    .split('-') // splits 'my-long-word' into array ['my', 'long', 'word']
+    .map(
+      // capitalizes first letters of all array items except the first one
+      // converts ['my', 'long', 'word'] into ['my', 'Long', 'Word']
+      (word, index) => index == 0 ? word : word[0].toUpperCase() + word.slice(1)
+    )
+    .join(''); // joins ['my', 'Long', 'Word'] into 'myLongWord'
+}

1-js/01-a/1-a1/3-errorjs/source/index.js

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+
+function f() {
+  throw new Error("ERR");
+}
+
+f();

1-js/01-a/1-a1/3-errorjs/source/test.js

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+describe("errorjs", function() {
+
+  it("passes", function() {  });
+  it("fails", function() { throw new Error("FAIL")  });
+
+});

1-js/01-a/1-a1/3-errorjs/task.md

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+importance: 5
+type: js
+
+---
+
+# Translate border-left-width to borderLeftWidth
+
+Write the function `camelize(str)` that changes dash-separated words like "my-short-string" into camel-cased "myShortString".
+
+That is: removes all dashes, each word after dash becomes uppercased.
+
+Examples:
+
+```js
+camelize("background-color") == 'backgroundColor';
+camelize("list-style-image") == 'listStyleImage';
+camelize("-webkit-transition") == 'WebkitTransition';
+```
+
+P.S. Hint: use `split` to split the string into an array, transform it and `join` back.

1-js/01-a/1-a1/4-syntaxerrorjs/solution/index.js

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+function camelize(str) {
+  return str
+    .split('-') // splits 'my-long-word' into array ['my', 'long', 'word']
+    .map(
+      // capitalizes first letters of all array items except the first one
+      // converts ['my', 'long', 'word'] into ['my', 'Long', 'Word']
+      (word, index) => index == 0 ? word : word[0].toUpperCase() + word.slice(1)
+    )
+    .join(''); // joins ['my', 'Long', 'Word'] into 'myLongWord'
+}

1-js/01-a/1-a1/4-syntaxerrorjs/source/index.js

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+function f() {
+  throw new Error("ERR");
+}
+
+{{{
+
+f();

1-js/01-a/1-a1/4-syntaxerrorjs/source/test.js

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+describe("errorjs", function() {
+
+  it("passes", function() {  });
+  it("fails", function() { throw new Error("FAIL")  });
+
+});

1-js/01-a/1-a1/4-syntaxerrorjs/task.md

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+importance: 5
+type: js
+
+---
+
+# Translate border-left-width to borderLeftWidth
+
+Write the function `camelize(str)` that changes dash-separated words like "my-short-string" into camel-cased "myShortString".
+
+That is: removes all dashes, each word after dash becomes uppercased.
+
+Examples:
+
+```js
+camelize("background-color") == 'backgroundColor';
+camelize("list-style-image") == 'listStyleImage';
+camelize("-webkit-transition") == 'WebkitTransition';
+```
+
+P.S. Hint: use `split` to split the string into an array, transform it and `join` back.

1-js/01-a/1-a1/article.md

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+# An Introduction to JavaScript
+
+Let's see what's so special about JavaScript, what we can achieve with it, and which other technologies play well with it.

1-js/01-a/index.md

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+# An introduction
+
+About the JavaScript language and the environment to develop with it.